27989423

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 36426240

約数和(自身を除く): 8436817

約数列:

[1, 7, 11, 59, 61, 77, 101, 413, 427, 649, 671, 707, 1111, 3599, 4543, 4697, 5959, 6161, 7777, 25193, 39589, 41713, 43127, 65549, 67771, 277123, 363499, 458843, 474397, 2544493, 3998489, 27989423]

約数ペア:

[(1, 27989423), (7, 3998489), (11, 2544493), (59, 474397), (61, 458843), (77, 363499), (101, 277123), (413, 67771), (427, 65549), (649, 43127), (671, 41713), (707, 39589), (1111, 25193), (3599, 7777), (4543, 6161), (4697, 5959)]