388626903

素因数分解:

$3^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4931}}^1$

素因数の和:5089

約数の個数: 40

約数和(自身を含む): 668384640

約数和(自身を除く): 279757737

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 417, 567, 973, 1251, 2919, 3753, 4931, 8757, 11259, 14793, 26271, 34517, 44379, 78813, 103551, 133137, 310653, 399411, 685409, 931959, 2056227, 2795877, 4797863, 6168681, 14393589, 18506043, 43180767, 55518129, 129542301, 388626903]

約数ペア:

[(1, 388626903), (3, 129542301), (7, 55518129), (9, 43180767), (21, 18506043), (27, 14393589), (63, 6168681), (81, 4797863), (139, 2795877), (189, 2056227), (417, 931959), (567, 685409), (973, 399411), (1251, 310653), (2919, 133137), (3753, 103551), (4931, 78813), (8757, 44379), (11259, 34517), (14793, 26271)]