18847905

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1613}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 32538240

約数和(自身を除く): 13690335

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 1613, 2337, 3895, 4839, 8065, 11685, 24195, 30647, 66133, 91941, 153235, 198399, 330665, 459705, 991995, 1256527, 3769581, 6282635, 18847905]

約数ペア:

[(1, 18847905), (3, 6282635), (5, 3769581), (15, 1256527), (19, 991995), (41, 459705), (57, 330665), (95, 198399), (123, 153235), (205, 91941), (285, 66133), (615, 30647), (779, 24195), (1613, 11685), (2337, 8065), (3895, 4839)]