19919696

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9803}}^1$

素因数の和:9938

約数の個数: 20

約数和(自身を含む): 38902272

約数和(自身を除く): 18982576

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9803, 19606, 39212, 78424, 156848, 1244981, 2489962, 4979924, 9959848, 19919696]

約数ペア:

[(1, 19919696), (2, 9959848), (4, 4979924), (8, 2489962), (16, 1244981), (127, 156848), (254, 78424), (508, 39212), (1016, 19606), (2032, 9803)]