21307730

素因数分解:

$2^1\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{1613}}^1$

素因数の和:2941

約数の個数: 16

約数和(自身を含む): 38406744

約数和(自身を除く): 17099014

約数列:

[1, 2, 5, 10, 1321, 1613, 2642, 3226, 6605, 8065, 13210, 16130, 2130773, 4261546, 10653865, 21307730]

約数ペア:

[(1, 21307730), (2, 10653865), (5, 4261546), (10, 2130773), (1321, 16130), (1613, 13210), (2642, 8065), (3226, 6605)]