21881108

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{2131}}^1$

素因数の和:2303

約数の個数: 24

約数和(自身を含む): 40832064

約数和(自身を除く): 18950956

約数列:

[1, 2, 4, 17, 34, 68, 151, 302, 604, 2131, 2567, 4262, 5134, 8524, 10268, 36227, 72454, 144908, 321781, 643562, 1287124, 5470277, 10940554, 21881108]

約数ペア:

[(1, 21881108), (2, 10940554), (4, 5470277), (17, 1287124), (34, 643562), (68, 321781), (151, 144908), (302, 72454), (604, 36227), (2131, 10268), (2567, 8524), (4262, 5134)]