19780163

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:167

約数の個数: 32

約数和(自身を含む): 24131520

約数和(自身を除く): 4351357

約数列:

[1, 13, 17, 37, 41, 59, 221, 481, 533, 629, 697, 767, 1003, 1517, 2183, 2419, 8177, 9061, 13039, 19721, 25789, 28379, 31447, 37111, 41123, 89503, 335257, 482443, 534599, 1163539, 1521551, 19780163]

約数ペア:

[(1, 19780163), (13, 1521551), (17, 1163539), (37, 534599), (41, 482443), (59, 335257), (221, 89503), (481, 41123), (533, 37111), (629, 31447), (697, 28379), (767, 25789), (1003, 19721), (1517, 13039), (2183, 9061), (2419, 8177)]