78156729

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 132897024

約数和(自身を除く): 54740295

約数列:

[1, 3, 7, 9, 21, 63, 71, 101, 173, 213, 303, 497, 519, 639, 707, 909, 1211, 1491, 1557, 2121, 3633, 4473, 6363, 7171, 10899, 12283, 17473, 21513, 36849, 50197, 52419, 64539, 85981, 110547, 122311, 150591, 157257, 257943, 366933, 451773, 773829, 1100799, 1240583, 3721749, 8684081, 11165247, 26052243, 78156729]

約数ペア:

[(1, 78156729), (3, 26052243), (7, 11165247), (9, 8684081), (21, 3721749), (63, 1240583), (71, 1100799), (101, 773829), (173, 451773), (213, 366933), (303, 257943), (497, 157257), (519, 150591), (639, 122311), (707, 110547), (909, 85981), (1211, 64539), (1491, 52419), (1557, 50197), (2121, 36849), (3633, 21513), (4473, 17473), (6363, 12283), (7171, 10899)]