21800870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23957}}^1$

素因数の和:23984

約数の個数: 32

約数和(自身を含む): 48299328

約数和(自身を除く): 26498458

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23957, 47914, 119785, 167699, 239570, 311441, 335398, 622882, 838495, 1557205, 1676990, 2180087, 3114410, 4360174, 10900435, 21800870]

約数ペア:

[(1, 21800870), (2, 10900435), (5, 4360174), (7, 3114410), (10, 2180087), (13, 1676990), (14, 1557205), (26, 838495), (35, 622882), (65, 335398), (70, 311441), (91, 239570), (130, 167699), (182, 119785), (455, 47914), (910, 23957)]