15420051

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 25159680

約数和(自身を除く): 9739629

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 89, 93, 207, 243, 267, 279, 621, 713, 801, 837, 1863, 2047, 2139, 2403, 2511, 2759, 5589, 6141, 6417, 7209, 7533, 8277, 18423, 19251, 21627, 24831, 55269, 57753, 63457, 74493, 165807, 173259, 190371, 223479, 497421, 571113, 670437, 1713339, 5140017, 15420051]

約数ペア:

[(1, 15420051), (3, 5140017), (9, 1713339), (23, 670437), (27, 571113), (31, 497421), (69, 223479), (81, 190371), (89, 173259), (93, 165807), (207, 74493), (243, 63457), (267, 57753), (279, 55269), (621, 24831), (713, 21627), (801, 19251), (837, 18423), (1863, 8277), (2047, 7533), (2139, 7209), (2403, 6417), (2511, 6141), (2759, 5589)]