18873145

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 24778584

約数和(自身を除く): 5905439

約数列:

[1, 5, 17, 37, 85, 185, 289, 353, 629, 1445, 1765, 3145, 6001, 10693, 13061, 30005, 53465, 65305, 102017, 222037, 510085, 1110185, 3774629, 18873145]

約数ペア:

[(1, 18873145), (5, 3774629), (17, 1110185), (37, 510085), (85, 222037), (185, 102017), (289, 65305), (353, 53465), (629, 30005), (1445, 13061), (1765, 10693), (3145, 6001)]