19885545

素因数分解:

$3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{683}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 34572096

約数和(自身を除く): 14686551

約数列:

[1, 3, 5, 9, 15, 45, 647, 683, 1941, 2049, 3235, 3415, 5823, 6147, 9705, 10245, 29115, 30735, 441901, 1325703, 2209505, 3977109, 6628515, 19885545]

約数ペア:

[(1, 19885545), (3, 6628515), (5, 3977109), (9, 2209505), (15, 1325703), (45, 441901), (647, 30735), (683, 29115), (1941, 10245), (2049, 9705), (3235, 6147), (3415, 5823)]