18698205

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 30820608

約数和(自身を除く): 12122403

約数列:

[1, 3, 5, 15, 71, 97, 181, 213, 291, 355, 485, 543, 905, 1065, 1455, 2715, 6887, 12851, 17557, 20661, 34435, 38553, 52671, 64255, 87785, 103305, 192765, 263355, 1246547, 3739641, 6232735, 18698205]

約数ペア:

[(1, 18698205), (3, 6232735), (5, 3739641), (15, 1246547), (71, 263355), (97, 192765), (181, 103305), (213, 87785), (291, 64255), (355, 52671), (485, 38553), (543, 34435), (905, 20661), (1065, 17557), (1455, 12851), (2715, 6887)]