1697987193

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1\times {\mathrm{2131}}^1$

素因数の和:4157

約数の個数: 32

約数和(自身を含む): 2726231040

約数和(自身を除く): 1028243847

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1997, 2131, 5991, 6393, 13979, 14917, 37943, 40489, 41937, 44751, 113829, 121467, 265601, 283423, 796803, 850269, 4255607, 12766821, 29789249, 80856533, 89367747, 242569599, 565995731, 1697987193]

約数ペア:

[(1, 1697987193), (3, 565995731), (7, 242569599), (19, 89367747), (21, 80856533), (57, 29789249), (133, 12766821), (399, 4255607), (1997, 850269), (2131, 796803), (5991, 283423), (6393, 265601), (13979, 121467), (14917, 113829), (37943, 44751), (40489, 41937)]