21536828

素因数分解:

$2^2\times {\mathrm{151}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 38342304

約数和(自身を除く): 16805476

約数列:

[1, 2, 4, 151, 181, 197, 302, 362, 394, 604, 724, 788, 27331, 29747, 35657, 54662, 59494, 71314, 109324, 118988, 142628, 5384207, 10768414, 21536828]

約数ペア:

[(1, 21536828), (2, 10768414), (4, 5384207), (151, 142628), (181, 118988), (197, 109324), (302, 71314), (362, 59494), (394, 54662), (604, 35657), (724, 29747), (788, 27331)]