21709496

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{283}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 41986560

約数和(自身を除く): 20277064

約数列:

[1, 2, 4, 8, 43, 86, 172, 223, 283, 344, 446, 566, 892, 1132, 1784, 2264, 9589, 12169, 19178, 24338, 38356, 48676, 63109, 76712, 97352, 126218, 252436, 504872, 2713687, 5427374, 10854748, 21709496]

約数ペア:

[(1, 21709496), (2, 10854748), (4, 5427374), (8, 2713687), (43, 504872), (86, 252436), (172, 126218), (223, 97352), (283, 76712), (344, 63109), (446, 48676), (566, 38356), (892, 24338), (1132, 19178), (1784, 12169), (2264, 9589)]