19581381

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{373}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 29949920

約数和(自身を除く): 10368539

約数列:

[1, 3, 9, 19, 57, 171, 307, 373, 921, 1119, 2763, 3357, 5833, 7087, 17499, 21261, 52497, 63783, 114511, 343533, 1030599, 2175709, 6527127, 19581381]

約数ペア:

[(1, 19581381), (3, 6527127), (9, 2175709), (19, 1030599), (57, 343533), (171, 114511), (307, 63783), (373, 52497), (921, 21261), (1119, 17499), (2763, 7087), (3357, 5833)]