491649921

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{77267}}^1$

素因数の和:77381

約数の個数: 24

約数和(自身を含む): 819658944

約数和(自身を除く): 328009023

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 6363, 77267, 231801, 540869, 695403, 1622607, 4867821, 7803967, 23411901, 54627769, 70235703, 163883307, 491649921]

約数ペア:

[(1, 491649921), (3, 163883307), (7, 70235703), (9, 54627769), (21, 23411901), (63, 7803967), (101, 4867821), (303, 1622607), (707, 695403), (909, 540869), (2121, 231801), (6363, 77267)]