21170210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1453}}^1$

素因数の和:1538

約数の個数: 32

約数和(自身を含む): 40200192

約数和(自身を除く): 19029982

約数列:

[1, 2, 5, 10, 31, 47, 62, 94, 155, 235, 310, 470, 1453, 1457, 2906, 2914, 7265, 7285, 14530, 14570, 45043, 68291, 90086, 136582, 225215, 341455, 450430, 682910, 2117021, 4234042, 10585105, 21170210]

約数ペア:

[(1, 21170210), (2, 10585105), (5, 4234042), (10, 2117021), (31, 682910), (47, 450430), (62, 341455), (94, 225215), (155, 136582), (235, 90086), (310, 68291), (470, 45043), (1453, 14570), (1457, 14530), (2906, 7285), (2914, 7265)]