20417969

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 26199936

約数和(自身を除く): 5781967

約数列:

[1, 11, 13, 17, 37, 143, 187, 221, 227, 407, 481, 629, 2431, 2497, 2951, 3859, 5291, 6919, 8177, 8399, 32461, 42449, 50167, 89947, 92389, 109187, 142783, 551837, 1201057, 1570613, 1856179, 20417969]

約数ペア:

[(1, 20417969), (11, 1856179), (13, 1570613), (17, 1201057), (37, 551837), (143, 142783), (187, 109187), (221, 92389), (227, 89947), (407, 50167), (481, 42449), (629, 32461), (2431, 8399), (2497, 8177), (2951, 6919), (3859, 5291)]