31077921

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 50485248

約数和(自身を除く): 19407327

約数列:

[1, 3, 7, 17, 21, 51, 119, 263, 331, 357, 789, 993, 1841, 2317, 4471, 5523, 5627, 6951, 13413, 16881, 31297, 39389, 87053, 93891, 118167, 261159, 609371, 1479901, 1828113, 4439703, 10359307, 31077921]

約数ペア:

[(1, 31077921), (3, 10359307), (7, 4439703), (17, 1828113), (21, 1479901), (51, 609371), (119, 261159), (263, 118167), (331, 93891), (357, 87053), (789, 39389), (993, 31297), (1841, 16881), (2317, 13413), (4471, 6951), (5523, 5627)]