21461776

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5179}}^1$

素因数の和:5231

約数の個数: 40

約数和(自身を含む): 48816320

約数和(自身を除く): 27354544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 5179, 10358, 20716, 36253, 41432, 72506, 82864, 145012, 191623, 290024, 383246, 580048, 766492, 1341361, 1532984, 2682722, 3065968, 5365444, 10730888, 21461776]

約数ペア:

[(1, 21461776), (2, 10730888), (4, 5365444), (7, 3065968), (8, 2682722), (14, 1532984), (16, 1341361), (28, 766492), (37, 580048), (56, 383246), (74, 290024), (112, 191623), (148, 145012), (259, 82864), (296, 72506), (518, 41432), (592, 36253), (1036, 20716), (2072, 10358), (4144, 5179)]