28638369

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{857}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 42831360

約数和(自身を除く): 14192991

約数列:

[1, 3, 9, 47, 79, 141, 237, 423, 711, 857, 2571, 3713, 7713, 11139, 33417, 40279, 67703, 120837, 203109, 362511, 609327, 3182041, 9546123, 28638369]

約数ペア:

[(1, 28638369), (3, 9546123), (9, 3182041), (47, 609327), (79, 362511), (141, 203109), (237, 120837), (423, 67703), (711, 40279), (857, 33417), (2571, 11139), (3713, 7713)]