13275129

素因数分解:

$3^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:147

約数の個数: 40

約数和(自身を含む): 21959840

約数和(自身を除く): 8684711

約数列:

[1, 3, 7, 19, 21, 49, 57, 97, 133, 147, 291, 343, 399, 679, 931, 1029, 1843, 2037, 2401, 2793, 4753, 5529, 6517, 7203, 12901, 14259, 19551, 33271, 38703, 45619, 90307, 99813, 136857, 232897, 270921, 632149, 698691, 1896447, 4425043, 13275129]

約数ペア:

[(1, 13275129), (3, 4425043), (7, 1896447), (19, 698691), (21, 632149), (49, 270921), (57, 232897), (97, 136857), (133, 99813), (147, 90307), (291, 45619), (343, 38703), (399, 33271), (679, 19551), (931, 14259), (1029, 12901), (1843, 7203), (2037, 6517), (2401, 5529), (2793, 4753)]