17980358

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:604

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 11896762

約数列:

[1, 2, 11, 22, 121, 191, 242, 382, 389, 778, 2101, 4202, 4279, 8558, 23111, 46222, 47069, 74299, 94138, 148598, 817289, 1634578, 8990179, 17980358]

約数ペア:

[(1, 17980358), (2, 8990179), (11, 1634578), (22, 817289), (121, 148598), (191, 94138), (242, 74299), (382, 47069), (389, 46222), (778, 23111), (2101, 8558), (4202, 4279)]