81231966

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{145577}}^1$

素因数の和:145616

約数の個数: 24

約数和(自身を含む): 181681344

約数和(自身を除く): 100449378

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 145577, 291154, 436731, 873462, 1310193, 2620386, 4512887, 9025774, 13538661, 27077322, 40615983, 81231966]

約数ペア:

[(1, 81231966), (2, 40615983), (3, 27077322), (6, 13538661), (9, 9025774), (18, 4512887), (31, 2620386), (62, 1310193), (93, 873462), (186, 436731), (279, 291154), (558, 145577)]