421744

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:664

約数の個数: 20

約数和(自身を含む): 837496

約数和(自身を除く): 415752

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 613, 688, 1226, 2452, 4904, 9808, 26359, 52718, 105436, 210872, 421744]

約数ペア:

[(1, 421744), (2, 210872), (4, 105436), (8, 52718), (16, 26359), (43, 9808), (86, 4904), (172, 2452), (344, 1226), (613, 688)]