19641999

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{4457}}^1$

素因数の和:4586

約数の個数: 16

約数和(自身を含む): 28459872

約数和(自身を除く): 8817873

約数列:

[1, 3, 13, 39, 113, 339, 1469, 4407, 4457, 13371, 57941, 173823, 503641, 1510923, 6547333, 19641999]

約数ペア:

[(1, 19641999), (3, 6547333), (13, 1510923), (39, 503641), (113, 173823), (339, 57941), (1469, 13371), (4407, 4457)]