20872198

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{769}}^1$

素因数の和:1143

約数の個数: 16

約数和(自身を含む): 32210640

約数和(自身を除く): 11338442

約数列:

[1, 2, 41, 82, 331, 662, 769, 1538, 13571, 27142, 31529, 63058, 254539, 509078, 10436099, 20872198]

約数ペア:

[(1, 20872198), (2, 10436099), (41, 509078), (82, 254539), (331, 63058), (662, 31529), (769, 27142), (1538, 13571)]