21780864

素因数分解:

$2^7\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:137

約数の個数: 192

約数和(自身を含む): 74574240

約数和(自身を除く): 52793376

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 37, 42, 48, 56, 63, 64, 72, 73, 74, 84, 96, 111, 112, 126, 128, 144, 146, 148, 168, 192, 219, 222, 224, 252, 259, 288, 292, 296, 333, 336, 384, 438, 444, 448, 504, 511, 518, 576, 584, 592, 657, 666, 672, 777, 876, 888, 896, 1008, 1022, 1036, 1152, 1168, 1184, 1314, 1332, 1344, 1533, 1554, 1752, 1776, 2016, 2044, 2072, 2331, 2336, 2368, 2628, 2664, 2688, 2701, 3066, 3108, 3504, 3552, 4032, 4088, 4144, 4599, 4662, 4672, 4736, 5256, 5328, 5402, 6132, 6216, 7008, 7104, 8064, 8103, 8176, 8288, 9198, 9324, 9344, 10512, 10656, 10804, 12264, 12432, 14016, 14208, 16206, 16352, 16576, 18396, 18648, 18907, 21024, 21312, 21608, 24309, 24528, 24864, 28032, 32412, 32704, 33152, 36792, 37296, 37814, 42048, 42624, 43216, 48618, 49056, 49728, 56721, 64824, 65408, 73584, 74592, 75628, 84096, 86432, 97236, 98112, 99456, 113442, 129648, 147168, 149184, 151256, 170163, 172864, 194472, 196224, 226884, 259296, 294336, 298368, 302512, 340326, 345728, 388944, 453768, 518592, 588672, 605024, 680652, 777888, 907536, 1037184, 1210048, 1361304, 1555776, 1815072, 2420096, 2722608, 3111552, 3630144, 5445216, 7260288, 10890432, 21780864]

約数ペア:

[(1, 21780864), (2, 10890432), (3, 7260288), (4, 5445216), (6, 3630144), (7, 3111552), (8, 2722608), (9, 2420096), (12, 1815072), (14, 1555776), (16, 1361304), (18, 1210048), (21, 1037184), (24, 907536), (28, 777888), (32, 680652), (36, 605024), (37, 588672), (42, 518592), (48, 453768), (56, 388944), (63, 345728), (64, 340326), (72, 302512), (73, 298368), (74, 294336), (84, 259296), (96, 226884), (111, 196224), (112, 194472), (126, 172864), (128, 170163), (144, 151256), (146, 149184), (148, 147168), (168, 129648), (192, 113442), (219, 99456), (222, 98112), (224, 97236), (252, 86432), (259, 84096), (288, 75628), (292, 74592), (296, 73584), (333, 65408), (336, 64824), (384, 56721), (438, 49728), (444, 49056), (448, 48618), (504, 43216), (511, 42624), (518, 42048), (576, 37814), (584, 37296), (592, 36792), (657, 33152), (666, 32704), (672, 32412), (777, 28032), (876, 24864), (888, 24528), (896, 24309), (1008, 21608), (1022, 21312), (1036, 21024), (1152, 18907), (1168, 18648), (1184, 18396), (1314, 16576), (1332, 16352), (1344, 16206), (1533, 14208), (1554, 14016), (1752, 12432), (1776, 12264), (2016, 10804), (2044, 10656), (2072, 10512), (2331, 9344), (2336, 9324), (2368, 9198), (2628, 8288), (2664, 8176), (2688, 8103), (2701, 8064), (3066, 7104), (3108, 7008), (3504, 6216), (3552, 6132), (4032, 5402), (4088, 5328), (4144, 5256), (4599, 4736), (4662, 4672)]