20405722

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1\times {\mathrm{881}}^1$

素因数の和:1233

約数の個数: 16

約数和(自身を含む): 31572072

約数和(自身を除く): 11166350

約数列:

[1, 2, 37, 74, 313, 626, 881, 1762, 11581, 23162, 32597, 65194, 275753, 551506, 10202861, 20405722]

約数ペア:

[(1, 20405722), (2, 10202861), (37, 551506), (74, 275753), (313, 65194), (626, 32597), (881, 23162), (1762, 11581)]