216461781

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 326121600

約数和(自身を除く): 109659819

約数列:

[1, 3, 9, 27, 137, 139, 411, 417, 421, 1233, 1251, 1263, 3699, 3753, 3789, 11367, 19043, 57129, 57677, 58519, 171387, 173031, 175557, 514161, 519093, 526671, 1557279, 1580013, 8017103, 24051309, 72153927, 216461781]

約数ペア:

[(1, 216461781), (3, 72153927), (9, 24051309), (27, 8017103), (137, 1580013), (139, 1557279), (411, 526671), (417, 519093), (421, 514161), (1233, 175557), (1251, 173031), (1263, 171387), (3699, 58519), (3753, 57677), (3789, 57129), (11367, 19043)]