21425836

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1319}}^1$

素因数の和:1485

約数の個数: 24

約数和(自身を含む): 39029760

約数和(自身を除く): 17603924

約数列:

[1, 2, 4, 31, 62, 124, 131, 262, 524, 1319, 2638, 4061, 5276, 8122, 16244, 40889, 81778, 163556, 172789, 345578, 691156, 5356459, 10712918, 21425836]

約数ペア:

[(1, 21425836), (2, 10712918), (4, 5356459), (31, 691156), (62, 345578), (124, 172789), (131, 163556), (262, 81778), (524, 40889), (1319, 16244), (2638, 8122), (4061, 5276)]