20821170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{694039}}^1$

素因数の和:694049

約数の個数: 16

約数和(自身を含む): 49970880

約数和(自身を除く): 29149710

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 694039, 1388078, 2082117, 3470195, 4164234, 6940390, 10410585, 20821170]

約数ペア:

[(1, 20821170), (2, 10410585), (3, 6940390), (5, 4164234), (6, 3470195), (10, 2082117), (15, 1388078), (30, 694039)]