138586721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 176698368

約数和(自身を除く): 38111647

約数列:

[1, 7, 13, 43, 91, 107, 301, 331, 559, 749, 1391, 2317, 3913, 4303, 4601, 9737, 14233, 30121, 32207, 35417, 59813, 99631, 185029, 247919, 418691, 460421, 1295203, 1522931, 3222947, 10660517, 19798103, 138586721]

約数ペア:

[(1, 138586721), (7, 19798103), (13, 10660517), (43, 3222947), (91, 1522931), (107, 1295203), (301, 460421), (331, 418691), (559, 247919), (749, 185029), (1391, 99631), (2317, 59813), (3913, 35417), (4303, 32207), (4601, 30121), (9737, 14233)]