193905

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:181

約数の個数: 24

約数和(自身を含む): 349440

約数和(自身を除く): 155535

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 139, 155, 279, 417, 465, 695, 1251, 1395, 2085, 4309, 6255, 12927, 21545, 38781, 64635, 193905]

約数ペア:

[(1, 193905), (3, 64635), (5, 38781), (9, 21545), (15, 12927), (31, 6255), (45, 4309), (93, 2085), (139, 1395), (155, 1251), (279, 695), (417, 465)]