20980636

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4679}}^1$

素因数の和:4761

約数の個数: 24

約数和(自身を含む): 39312000

約数和(自身を除く): 18331364

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4484, 4679, 9358, 18716, 88901, 177802, 276061, 355604, 552122, 1104244, 5245159, 10490318, 20980636]

約数ペア:

[(1, 20980636), (2, 10490318), (4, 5245159), (19, 1104244), (38, 552122), (59, 355604), (76, 276061), (118, 177802), (236, 88901), (1121, 18716), (2242, 9358), (4484, 4679)]