18954765

素因数分解:

$3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1061}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 32968728

約数和(自身を除く): 14013963

約数列:

[1, 3, 5, 9, 15, 45, 397, 1061, 1191, 1985, 3183, 3573, 5305, 5955, 9549, 15915, 17865, 47745, 421217, 1263651, 2106085, 3790953, 6318255, 18954765]

約数ペア:

[(1, 18954765), (3, 6318255), (5, 3790953), (9, 2106085), (15, 1263651), (45, 421217), (397, 47745), (1061, 17865), (1191, 15915), (1985, 9549), (3183, 5955), (3573, 5305)]