18870135

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 32252160

約数和(自身を除く): 13382025

約数列:

[1, 3, 5, 15, 19, 57, 73, 95, 219, 285, 365, 907, 1095, 1387, 2721, 4161, 4535, 6935, 13605, 17233, 20805, 51699, 66211, 86165, 198633, 258495, 331055, 993165, 1258009, 3774027, 6290045, 18870135]

約数ペア:

[(1, 18870135), (3, 6290045), (5, 3774027), (15, 1258009), (19, 993165), (57, 331055), (73, 258495), (95, 198633), (219, 86165), (285, 66211), (365, 51699), (907, 20805), (1095, 17233), (1387, 13605), (2721, 6935), (4161, 4535)]