217020111

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{40847}}^1$

素因数の和:40891

約数の個数: 32

約数和(自身を含む): 376455168

約数和(自身を除く): 159435057

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 5313, 40847, 122541, 285929, 449317, 857787, 939481, 1347951, 2818443, 3145219, 6576367, 9435657, 10334291, 19729101, 31002873, 72340037, 217020111]

約数ペア:

[(1, 217020111), (3, 72340037), (7, 31002873), (11, 19729101), (21, 10334291), (23, 9435657), (33, 6576367), (69, 3145219), (77, 2818443), (161, 1347951), (231, 939481), (253, 857787), (483, 449317), (759, 285929), (1771, 122541), (5313, 40847)]