20498854

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{659}}^1$

素因数の和:915

約数の個数: 16

約数和(自身を含む): 31299840

約数和(自身を除く): 10800986

約数列:

[1, 2, 103, 151, 206, 302, 659, 1318, 15553, 31106, 67877, 99509, 135754, 199018, 10249427, 20498854]

約数ペア:

[(1, 20498854), (2, 10249427), (103, 199018), (151, 135754), (206, 99509), (302, 67877), (659, 31106), (1318, 15553)]