211070979

素因数分解:

$3^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{4391}}^1$

素因数の和:4520

約数の個数: 36

約数和(自身を含む): 357991920

約数和(自身を除く): 146920941

約数列:

[1, 3, 7, 9, 21, 49, 63, 109, 147, 327, 441, 763, 981, 2289, 4391, 5341, 6867, 13173, 16023, 30737, 39519, 48069, 92211, 215159, 276633, 478619, 645477, 1435857, 1936431, 3350333, 4307571, 10050999, 23452331, 30152997, 70356993, 211070979]

約数ペア:

[(1, 211070979), (3, 70356993), (7, 30152997), (9, 23452331), (21, 10050999), (49, 4307571), (63, 3350333), (109, 1936431), (147, 1435857), (327, 645477), (441, 478619), (763, 276633), (981, 215159), (2289, 92211), (4391, 48069), (5341, 39519), (6867, 30737), (13173, 16023)]