21206207

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1061}}^1$

素因数の和:1174

約数の個数: 16

約数和(自身を含む): 24468480

約数和(自身を除く): 3262273

約数列:

[1, 11, 23, 79, 253, 869, 1061, 1817, 11671, 19987, 24403, 83819, 268433, 922009, 1927837, 21206207]

約数ペア:

[(1, 21206207), (11, 1927837), (23, 922009), (79, 268433), (253, 83819), (869, 24403), (1061, 19987), (1817, 11671)]