287581389

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 406069248

約数和(自身を除く): 118487859

約数列:

[1, 3, 31, 61, 93, 163, 183, 311, 489, 933, 1891, 5053, 5673, 9641, 9943, 15159, 18971, 28923, 29829, 50693, 56913, 152079, 308233, 588101, 924699, 1571483, 1764303, 3092273, 4714449, 9276819, 95860463, 287581389]

約数ペア:

[(1, 287581389), (3, 95860463), (31, 9276819), (61, 4714449), (93, 3092273), (163, 1764303), (183, 1571483), (311, 924699), (489, 588101), (933, 308233), (1891, 152079), (5053, 56913), (5673, 50693), (9641, 29829), (9943, 28923), (15159, 18971)]