21911955

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3037}}^1$

素因数の和:3095

約数の個数: 32

約数和(自身を含む): 38789184

約数和(自身を除く): 16877229

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 3037, 7215, 9111, 15185, 39481, 45555, 112369, 118443, 197405, 337107, 561845, 592215, 1460797, 1685535, 4382391, 7303985, 21911955]

約数ペア:

[(1, 21911955), (3, 7303985), (5, 4382391), (13, 1685535), (15, 1460797), (37, 592215), (39, 561845), (65, 337107), (111, 197405), (185, 118443), (195, 112369), (481, 45555), (555, 39481), (1443, 15185), (2405, 9111), (3037, 7215)]