17939925

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1123}}^1$

素因数の和:1210

約数の個数: 36

約数和(自身を含む): 32613984

約数和(自身を除く): 14674059

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1123, 1775, 3195, 3369, 5325, 5615, 10107, 15975, 16845, 28075, 50535, 79733, 84225, 239199, 252675, 398665, 717597, 1195995, 1993325, 3587985, 5979975, 17939925]

約数ペア:

[(1, 17939925), (3, 5979975), (5, 3587985), (9, 1993325), (15, 1195995), (25, 717597), (45, 398665), (71, 252675), (75, 239199), (213, 84225), (225, 79733), (355, 50535), (639, 28075), (1065, 16845), (1123, 15975), (1775, 10107), (3195, 5615), (3369, 5325)]