407019879

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{20641}}^1$

素因数の和:20967

約数の個数: 24

約数和(自身を含む): 674085152

約数和(自身を除く): 267065273

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 2191, 2817, 6573, 19719, 20641, 61923, 144487, 185769, 433461, 1300383, 6460633, 19381899, 45224431, 58145697, 135673293, 407019879]

約数ペア:

[(1, 407019879), (3, 135673293), (7, 58145697), (9, 45224431), (21, 19381899), (63, 6460633), (313, 1300383), (939, 433461), (2191, 185769), (2817, 144487), (6573, 61923), (19719, 20641)]