21051606147

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{593}}^1\times {\mathrm{997}}^1$

素因数の和:1700

約数の個数: 64

約数和(自身を含む): 33463051776

約数和(自身を除く): 12411445629

約数列:

[1, 3, 11, 13, 33, 39, 83, 143, 249, 429, 593, 913, 997, 1079, 1779, 2739, 2991, 3237, 6523, 7709, 10967, 11869, 12961, 19569, 23127, 32901, 35607, 38883, 49219, 82751, 84799, 142571, 147657, 248253, 254397, 427713, 541409, 591221, 639847, 910261, 1075763, 1624227, 1773663, 1919541, 2730783, 3227289, 6503431, 7038317, 7685873, 11833393, 19510293, 21114951, 23057619, 35500179, 49071343, 84544603, 147214029, 253633809, 539784773, 637927459, 1619354319, 1913782377, 7017202049, 21051606147]

約数ペア:

[(1, 21051606147), (3, 7017202049), (11, 1913782377), (13, 1619354319), (33, 637927459), (39, 539784773), (83, 253633809), (143, 147214029), (249, 84544603), (429, 49071343), (593, 35500179), (913, 23057619), (997, 21114951), (1079, 19510293), (1779, 11833393), (2739, 7685873), (2991, 7038317), (3237, 6503431), (6523, 3227289), (7709, 2730783), (10967, 1919541), (11869, 1773663), (12961, 1624227), (19569, 1075763), (23127, 910261), (32901, 639847), (35607, 591221), (38883, 541409), (49219, 427713), (82751, 254397), (84799, 248253), (142571, 147657)]