21107410

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 39232512

約数和(自身を除く): 18125102

約数列:

[1, 2, 5, 10, 43, 86, 191, 215, 257, 382, 430, 514, 955, 1285, 1910, 2570, 8213, 11051, 16426, 22102, 41065, 49087, 55255, 82130, 98174, 110510, 245435, 490870, 2110741, 4221482, 10553705, 21107410]

約数ペア:

[(1, 21107410), (2, 10553705), (5, 4221482), (10, 2110741), (43, 490870), (86, 245435), (191, 110510), (215, 98174), (257, 82130), (382, 55255), (430, 49087), (514, 41065), (955, 22102), (1285, 16426), (1910, 11051), (2570, 8213)]