28501767

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7937}}^1$

素因数の和:7972

約数の個数: 32

約数和(自身を含む): 50803200

約数和(自身を除く): 22301433

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 7937, 23811, 55559, 71433, 150803, 166677, 214299, 452409, 500031, 1055621, 1357227, 1500093, 3166863, 4071681, 9500589, 28501767]

約数ペア:

[(1, 28501767), (3, 9500589), (7, 4071681), (9, 3166863), (19, 1500093), (21, 1357227), (27, 1055621), (57, 500031), (63, 452409), (133, 214299), (171, 166677), (189, 150803), (399, 71433), (513, 55559), (1197, 23811), (3591, 7937)]