2021287020193

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1\times {\mathrm{709}}^1$

素因数の和:1670

約数の個数: 64

約数和(自身を含む): 2426277888000

約数和(自身を除く): 404990867807

約数列:

[1, 7, 31, 107, 199, 217, 617, 709, 749, 1393, 3317, 4319, 4963, 6169, 19127, 21293, 21979, 23219, 43183, 66019, 75863, 122783, 133889, 141091, 149051, 153853, 437453, 462133, 531041, 660083, 859481, 987637, 2046589, 2351753, 3062171, 3806273, 4373821, 4620581, 13137781, 13561043, 14326123, 15096737, 16462271, 26643911, 30616747, 46807471, 87053147, 91964467, 94927301, 105677159, 327652297, 407271211, 467998847, 609372029, 1451031601, 2698647557, 2850898477, 3275991929, 9314686729, 10157221207, 18890532899, 65202807103, 288755288599, 2021287020193]

約数ペア:

[(1, 2021287020193), (7, 288755288599), (31, 65202807103), (107, 18890532899), (199, 10157221207), (217, 9314686729), (617, 3275991929), (709, 2850898477), (749, 2698647557), (1393, 1451031601), (3317, 609372029), (4319, 467998847), (4963, 407271211), (6169, 327652297), (19127, 105677159), (21293, 94927301), (21979, 91964467), (23219, 87053147), (43183, 46807471), (66019, 30616747), (75863, 26643911), (122783, 16462271), (133889, 15096737), (141091, 14326123), (149051, 13561043), (153853, 13137781), (437453, 4620581), (462133, 4373821), (531041, 3806273), (660083, 3062171), (859481, 2351753), (987637, 2046589)]