28165347

素因数分解:

$3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 49476000

約数和(自身を除く): 21310653

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 147, 183, 189, 349, 427, 441, 549, 1047, 1281, 1323, 1647, 2443, 2989, 3141, 3843, 7329, 8967, 9423, 11529, 17101, 21289, 21987, 26901, 51303, 63867, 65961, 80703, 149023, 153909, 191601, 447069, 461727, 574803, 1043161, 1341207, 3129483, 4023621, 9388449, 28165347]

約数ペア:

[(1, 28165347), (3, 9388449), (7, 4023621), (9, 3129483), (21, 1341207), (27, 1043161), (49, 574803), (61, 461727), (63, 447069), (147, 191601), (183, 153909), (189, 149023), (349, 80703), (427, 65961), (441, 63867), (549, 51303), (1047, 26901), (1281, 21987), (1323, 21289), (1647, 17101), (2443, 11529), (2989, 9423), (3141, 8967), (3843, 7329)]