128778813

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{251}}^1\times {\mathrm{523}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 188828640

約数和(自身を除く): 60049827

約数列:

[1, 3, 9, 109, 251, 327, 523, 753, 981, 1569, 2259, 4707, 27359, 57007, 82077, 131273, 171021, 246231, 393819, 513063, 1181457, 14308757, 42926271, 128778813]

約数ペア:

[(1, 128778813), (3, 42926271), (9, 14308757), (109, 1181457), (251, 513063), (327, 393819), (523, 246231), (753, 171021), (981, 131273), (1569, 82077), (2259, 57007), (4707, 27359)]