20598556

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 48

約数和(自身を含む): 40951008

約数和(自身を除く): 20352452

約数列:

[1, 2, 4, 11, 22, 44, 53, 73, 106, 121, 146, 212, 242, 292, 484, 583, 803, 1166, 1331, 1606, 2332, 2662, 3212, 3869, 5324, 6413, 7738, 8833, 12826, 15476, 17666, 25652, 35332, 42559, 70543, 85118, 97163, 141086, 170236, 194326, 282172, 388652, 468149, 936298, 1872596, 5149639, 10299278, 20598556]

約数ペア:

[(1, 20598556), (2, 10299278), (4, 5149639), (11, 1872596), (22, 936298), (44, 468149), (53, 388652), (73, 282172), (106, 194326), (121, 170236), (146, 141086), (212, 97163), (242, 85118), (292, 70543), (484, 42559), (583, 35332), (803, 25652), (1166, 17666), (1331, 15476), (1606, 12826), (2332, 8833), (2662, 7738), (3212, 6413), (3869, 5324)]