21312410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1213}}^1$

素因数の和:1478

約数の個数: 32

約数和(自身を含む): 44053632

約数和(自身を除く): 22741222

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 251, 502, 1213, 1255, 1757, 2426, 2510, 3514, 6065, 8491, 8785, 12130, 16982, 17570, 42455, 84910, 304463, 608926, 1522315, 2131241, 3044630, 4262482, 10656205, 21312410]

約数ペア:

[(1, 21312410), (2, 10656205), (5, 4262482), (7, 3044630), (10, 2131241), (14, 1522315), (35, 608926), (70, 304463), (251, 84910), (502, 42455), (1213, 17570), (1255, 16982), (1757, 12130), (2426, 8785), (2510, 8491), (3514, 6065)]