205121223

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{8689}}^1$

素因数の和:8799

約数の個数: 24

約数和(自身を含む): 308182160

約数和(自身を除く): 103060937

約数列:

[1, 3, 9, 43, 61, 129, 183, 387, 549, 2623, 7869, 8689, 23607, 26067, 78201, 373627, 530029, 1120881, 1590087, 3362643, 4770261, 22791247, 68373741, 205121223]

約数ペア:

[(1, 205121223), (3, 68373741), (9, 22791247), (43, 4770261), (61, 3362643), (129, 1590087), (183, 1120881), (387, 530029), (549, 373627), (2623, 78201), (7869, 26067), (8689, 23607)]