21876309

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26711}}^1$

素因数の和:26737

約数の個数: 24

約数和(自身を含む): 38892672

約数和(自身を除く): 17016363

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 26711, 80133, 186977, 240399, 347243, 560931, 1041729, 1682793, 2430701, 3125187, 7292103, 21876309]

約数ペア:

[(1, 21876309), (3, 7292103), (7, 3125187), (9, 2430701), (13, 1682793), (21, 1041729), (39, 560931), (63, 347243), (91, 240399), (117, 186977), (273, 80133), (819, 26711)]