20961664

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{5647}}^1$

素因数の和:5690

約数の個数: 32

約数和(自身を含む): 43207200

約数和(自身を除く): 22245536

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 464, 928, 1856, 3712, 5647, 11294, 22588, 45176, 90352, 163763, 180704, 327526, 361408, 655052, 722816, 1310104, 2620208, 5240416, 10480832, 20961664]

約数ペア:

[(1, 20961664), (2, 10480832), (4, 5240416), (8, 2620208), (16, 1310104), (29, 722816), (32, 655052), (58, 361408), (64, 327526), (116, 180704), (128, 163763), (232, 90352), (464, 45176), (928, 22588), (1856, 11294), (3712, 5647)]