51890391

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 89204544

約数和(自身を除く): 37314153

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 113, 197, 259, 333, 339, 591, 777, 791, 1017, 1379, 1773, 2331, 2373, 4137, 4181, 7119, 7289, 12411, 12543, 21867, 22261, 29267, 37629, 51023, 65601, 66783, 87801, 153069, 155827, 200349, 263403, 459207, 467481, 823657, 1402443, 2470971, 5765599, 7412913, 17296797, 51890391]

約数ペア:

[(1, 51890391), (3, 17296797), (7, 7412913), (9, 5765599), (21, 2470971), (37, 1402443), (63, 823657), (111, 467481), (113, 459207), (197, 263403), (259, 200349), (333, 155827), (339, 153069), (591, 87801), (777, 66783), (791, 65601), (1017, 51023), (1379, 37629), (1773, 29267), (2331, 22261), (2373, 21867), (4137, 12543), (4181, 12411), (7119, 7289)]