21691844

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4679}}^1$

素因数の和:4763

約数の個数: 24

約数和(自身を含む): 40622400

約数和(自身を除く): 18930556

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 4679, 9358, 18716, 88901, 177802, 285419, 355604, 570838, 1141676, 5422961, 10845922, 21691844]

約数ペア:

[(1, 21691844), (2, 10845922), (4, 5422961), (19, 1141676), (38, 570838), (61, 355604), (76, 285419), (122, 177802), (244, 88901), (1159, 18716), (2318, 9358), (4636, 4679)]