21053890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14723}}^1$

素因数の和:14754

約数の個数: 32

約数和(自身を含む): 44525376

約数和(自身を除く): 23471486

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14723, 29446, 73615, 147230, 161953, 191399, 323906, 382798, 809765, 956995, 1619530, 1913990, 2105389, 4210778, 10526945, 21053890]

約数ペア:

[(1, 21053890), (2, 10526945), (5, 4210778), (10, 2105389), (11, 1913990), (13, 1619530), (22, 956995), (26, 809765), (55, 382798), (65, 323906), (110, 191399), (130, 161953), (143, 147230), (286, 73615), (715, 29446), (1430, 14723)]