216312999

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 353403648

約数和(自身を除く): 137090649

約数列:

[1, 3, 7, 21, 23, 49, 69, 137, 147, 161, 411, 467, 483, 959, 1127, 1401, 2877, 3151, 3269, 3381, 6713, 9453, 9807, 10741, 20139, 22057, 22883, 32223, 63979, 66171, 68649, 75187, 154399, 191937, 225561, 447853, 463197, 526309, 1343559, 1471517, 1578927, 3134971, 4414551, 9404913, 10300619, 30901857, 72104333, 216312999]

約数ペア:

[(1, 216312999), (3, 72104333), (7, 30901857), (21, 10300619), (23, 9404913), (49, 4414551), (69, 3134971), (137, 1578927), (147, 1471517), (161, 1343559), (411, 526309), (467, 463197), (483, 447853), (959, 225561), (1127, 191937), (1401, 154399), (2877, 75187), (3151, 68649), (3269, 66171), (3381, 63979), (6713, 32223), (9453, 22883), (9807, 22057), (10741, 20139)]