21543970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5807}}^1$

素因数の和:5874

約数の個数: 32

約数和(自身を含む): 45163008

約数和(自身を除く): 23619038

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5807, 11614, 29035, 40649, 58070, 81298, 203245, 307771, 406490, 615542, 1538855, 2154397, 3077710, 4308794, 10771985, 21543970]

約数ペア:

[(1, 21543970), (2, 10771985), (5, 4308794), (7, 3077710), (10, 2154397), (14, 1538855), (35, 615542), (53, 406490), (70, 307771), (106, 203245), (265, 81298), (371, 58070), (530, 40649), (742, 29035), (1855, 11614), (3710, 5807)]