21052408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5471}}^1$

素因数の和:5527

約数の個数: 32

約数和(自身を含む): 43666560

約数和(自身を除く): 22614152

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 5471, 10942, 21884, 43768, 71123, 142246, 202427, 284492, 404854, 568984, 809708, 1619416, 2631551, 5263102, 10526204, 21052408]

約数ペア:

[(1, 21052408), (2, 10526204), (4, 5263102), (8, 2631551), (13, 1619416), (26, 809708), (37, 568984), (52, 404854), (74, 284492), (104, 202427), (148, 142246), (296, 71123), (481, 43768), (962, 21884), (1924, 10942), (3848, 5471)]