21942620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156733}}^1$

素因数の和:156749

約数の個数: 24

約数和(自身を含む): 52662624

約数和(自身を除く): 30720004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156733, 313466, 626932, 783665, 1097131, 1567330, 2194262, 3134660, 4388524, 5485655, 10971310, 21942620]

約数ペア:

[(1, 21942620), (2, 10971310), (4, 5485655), (5, 4388524), (7, 3134660), (10, 2194262), (14, 1567330), (20, 1097131), (28, 783665), (35, 626932), (70, 313466), (140, 156733)]