21750560

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10457}}^1$

素因数の和:10485

約数の個数: 48

約数和(自身を含む): 55343736

約数和(自身を除く): 33593176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 10457, 20914, 41828, 52285, 83656, 104570, 135941, 167312, 209140, 271882, 334624, 418280, 543764, 679705, 836560, 1087528, 1359410, 1673120, 2175056, 2718820, 4350112, 5437640, 10875280, 21750560]

約数ペア:

[(1, 21750560), (2, 10875280), (4, 5437640), (5, 4350112), (8, 2718820), (10, 2175056), (13, 1673120), (16, 1359410), (20, 1087528), (26, 836560), (32, 679705), (40, 543764), (52, 418280), (65, 334624), (80, 271882), (104, 209140), (130, 167312), (160, 135941), (208, 104570), (260, 83656), (416, 52285), (520, 41828), (1040, 20914), (2080, 10457)]