21345856

素因数分解:

$2^6\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:132

約数の個数: 112

約数和(自身を含む): 52669440

約数和(自身を除く): 31323584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 31, 32, 53, 56, 58, 62, 64, 106, 112, 116, 124, 203, 212, 217, 224, 232, 248, 371, 406, 424, 434, 448, 464, 496, 742, 812, 848, 868, 899, 928, 992, 1484, 1537, 1624, 1643, 1696, 1736, 1798, 1856, 1984, 2968, 3074, 3248, 3286, 3392, 3472, 3596, 5936, 6148, 6293, 6496, 6572, 6944, 7192, 10759, 11501, 11872, 12296, 12586, 12992, 13144, 13888, 14384, 21518, 23002, 23744, 24592, 25172, 26288, 28768, 43036, 46004, 47647, 49184, 50344, 52576, 57536, 86072, 92008, 95294, 98368, 100688, 105152, 172144, 184016, 190588, 201376, 333529, 344288, 368032, 381176, 402752, 667058, 688576, 736064, 762352, 1334116, 1524704, 2668232, 3049408, 5336464, 10672928, 21345856]

約数ペア:

[(1, 21345856), (2, 10672928), (4, 5336464), (7, 3049408), (8, 2668232), (14, 1524704), (16, 1334116), (28, 762352), (29, 736064), (31, 688576), (32, 667058), (53, 402752), (56, 381176), (58, 368032), (62, 344288), (64, 333529), (106, 201376), (112, 190588), (116, 184016), (124, 172144), (203, 105152), (212, 100688), (217, 98368), (224, 95294), (232, 92008), (248, 86072), (371, 57536), (406, 52576), (424, 50344), (434, 49184), (448, 47647), (464, 46004), (496, 43036), (742, 28768), (812, 26288), (848, 25172), (868, 24592), (899, 23744), (928, 23002), (992, 21518), (1484, 14384), (1537, 13888), (1624, 13144), (1643, 12992), (1696, 12586), (1736, 12296), (1798, 11872), (1856, 11501), (1984, 10759), (2968, 7192), (3074, 6944), (3248, 6572), (3286, 6496), (3392, 6293), (3472, 6148), (3596, 5936)]