18857601

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:782

約数の個数: 36

約数和(自身を含む): 32251284

約数和(自身を除く): 13393683

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 701, 1281, 2103, 2989, 3843, 4907, 6309, 8967, 14721, 26901, 34349, 42761, 44163, 103047, 128283, 299327, 309141, 384849, 897981, 2095289, 2693943, 6285867, 18857601]

約数ペア:

[(1, 18857601), (3, 6285867), (7, 2693943), (9, 2095289), (21, 897981), (49, 384849), (61, 309141), (63, 299327), (147, 128283), (183, 103047), (427, 44163), (441, 42761), (549, 34349), (701, 26901), (1281, 14721), (2103, 8967), (2989, 6309), (3843, 4907)]