39975327

素因数分解:

$3^2\times 7^2\times {\mathrm{90647}}^1$

素因数の和:90667

約数の個数: 18

約数和(自身を含む): 67170168

約数和(自身を除く): 27194841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 90647, 271941, 634529, 815823, 1903587, 4441703, 5710761, 13325109, 39975327]

約数ペア:

[(1, 39975327), (3, 13325109), (7, 5710761), (9, 4441703), (21, 1903587), (49, 815823), (63, 634529), (147, 271941), (441, 90647)]