20138385

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3719}}^1$

素因数の和:3765

約数の個数: 24

約数和(自身を含む): 34015680

約数和(自身を除く): 13877295

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 361, 1083, 1805, 3719, 5415, 11157, 18595, 55785, 70661, 211983, 353305, 1059915, 1342559, 4027677, 6712795, 20138385]

約数ペア:

[(1, 20138385), (3, 6712795), (5, 4027677), (15, 1342559), (19, 1059915), (57, 353305), (95, 211983), (285, 70661), (361, 55785), (1083, 18595), (1805, 11157), (3719, 5415)]