18381911

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 20335200

約数和(自身を除く): 1953289

約数列:

[1, 19, 29, 73, 457, 551, 1387, 2117, 8683, 13253, 33361, 40223, 251807, 633859, 967469, 18381911]

約数ペア:

[(1, 18381911), (19, 967469), (29, 633859), (73, 251807), (457, 40223), (551, 33361), (1387, 13253), (2117, 8683)]