21016128

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:864

約数の個数: 112

約数和(自身を含む): 66974720

約数和(自身を除く): 45958592

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 32, 38, 42, 48, 56, 57, 64, 76, 84, 96, 112, 114, 133, 152, 168, 192, 224, 228, 266, 304, 336, 399, 448, 456, 532, 608, 672, 798, 823, 912, 1064, 1216, 1344, 1596, 1646, 1824, 2128, 2469, 3192, 3292, 3648, 4256, 4938, 5761, 6384, 6584, 8512, 9876, 11522, 12768, 13168, 15637, 17283, 19752, 23044, 25536, 26336, 31274, 34566, 39504, 46088, 46911, 52672, 62548, 69132, 79008, 92176, 93822, 109459, 125096, 138264, 158016, 184352, 187644, 218918, 250192, 276528, 328377, 368704, 375288, 437836, 500384, 553056, 656754, 750576, 875672, 1000768, 1106112, 1313508, 1501152, 1751344, 2627016, 3002304, 3502688, 5254032, 7005376, 10508064, 21016128]

約数ペア:

[(1, 21016128), (2, 10508064), (3, 7005376), (4, 5254032), (6, 3502688), (7, 3002304), (8, 2627016), (12, 1751344), (14, 1501152), (16, 1313508), (19, 1106112), (21, 1000768), (24, 875672), (28, 750576), (32, 656754), (38, 553056), (42, 500384), (48, 437836), (56, 375288), (57, 368704), (64, 328377), (76, 276528), (84, 250192), (96, 218918), (112, 187644), (114, 184352), (133, 158016), (152, 138264), (168, 125096), (192, 109459), (224, 93822), (228, 92176), (266, 79008), (304, 69132), (336, 62548), (399, 52672), (448, 46911), (456, 46088), (532, 39504), (608, 34566), (672, 31274), (798, 26336), (823, 25536), (912, 23044), (1064, 19752), (1216, 17283), (1344, 15637), (1596, 13168), (1646, 12768), (1824, 11522), (2128, 9876), (2469, 8512), (3192, 6584), (3292, 6384), (3648, 5761), (4256, 4938)]