28729233

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 47056464

約数和(自身を除く): 18327231

約数列:

[1, 3, 9, 13, 39, 41, 53, 113, 117, 123, 159, 339, 369, 477, 533, 689, 1017, 1469, 1599, 2067, 2173, 4407, 4633, 4797, 5989, 6201, 6519, 13221, 13899, 17967, 19557, 28249, 41697, 53901, 60229, 77857, 84747, 180687, 233571, 245549, 254241, 542061, 700713, 736647, 2209941, 3192137, 9576411, 28729233]

約数ペア:

[(1, 28729233), (3, 9576411), (9, 3192137), (13, 2209941), (39, 736647), (41, 700713), (53, 542061), (113, 254241), (117, 245549), (123, 233571), (159, 180687), (339, 84747), (369, 77857), (477, 60229), (533, 53901), (689, 41697), (1017, 28249), (1469, 19557), (1599, 17967), (2067, 13899), (2173, 13221), (4407, 6519), (4633, 6201), (4797, 5989)]