18690905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{3727}}^1$

素因数の和:3808

約数の個数: 16

約数和(自身を含む): 24157440

約数和(自身を除く): 5466535

約数列:

[1, 5, 17, 59, 85, 295, 1003, 3727, 5015, 18635, 63359, 219893, 316795, 1099465, 3738181, 18690905]

約数ペア:

[(1, 18690905), (5, 3738181), (17, 1099465), (59, 316795), (85, 219893), (295, 63359), (1003, 18635), (3727, 5015)]