21182870

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{57251}}^1$

素因数の和:57295

約数の個数: 16

約数和(自身を含む): 39160368

約数和(自身を除く): 17977498

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 57251, 114502, 286255, 572510, 2118287, 4236574, 10591435, 21182870]

約数ペア:

[(1, 21182870), (2, 10591435), (5, 4236574), (10, 2118287), (37, 572510), (74, 286255), (185, 114502), (370, 57251)]