21358384

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{241}}^1$

素因数の和:469

約数の個数: 40

約数和(自身を含む): 43211520

約数和(自身を除く): 21853136

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 191, 232, 241, 382, 464, 482, 764, 964, 1528, 1928, 3056, 3856, 5539, 6989, 11078, 13978, 22156, 27956, 44312, 46031, 55912, 88624, 92062, 111824, 184124, 368248, 736496, 1334899, 2669798, 5339596, 10679192, 21358384]

約数ペア:

[(1, 21358384), (2, 10679192), (4, 5339596), (8, 2669798), (16, 1334899), (29, 736496), (58, 368248), (116, 184124), (191, 111824), (232, 92062), (241, 88624), (382, 55912), (464, 46031), (482, 44312), (764, 27956), (964, 22156), (1528, 13978), (1928, 11078), (3056, 6989), (3856, 5539)]