21780798

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{9629}}^1$

素因数の和:9676

約数の個数: 32

約数和(自身を含む): 48535200

約数和(自身を除く): 26754402

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 78, 87, 174, 377, 754, 1131, 2262, 9629, 19258, 28887, 57774, 125177, 250354, 279241, 375531, 558482, 751062, 837723, 1675446, 3630133, 7260266, 10890399, 21780798]

約数ペア:

[(1, 21780798), (2, 10890399), (3, 7260266), (6, 3630133), (13, 1675446), (26, 837723), (29, 751062), (39, 558482), (58, 375531), (78, 279241), (87, 250354), (174, 125177), (377, 57774), (754, 28887), (1131, 19258), (2262, 9629)]