28901271

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1129}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 46863360

約数和(自身を除く): 17962089

約数列:

[1, 3, 7, 21, 23, 53, 69, 159, 161, 371, 483, 1113, 1129, 1219, 3387, 3657, 7903, 8533, 23709, 25599, 25967, 59837, 77901, 179511, 181769, 418859, 545307, 1256577, 1376251, 4128753, 9633757, 28901271]

約数ペア:

[(1, 28901271), (3, 9633757), (7, 4128753), (21, 1376251), (23, 1256577), (53, 545307), (69, 418859), (159, 181769), (161, 179511), (371, 77901), (483, 59837), (1113, 25967), (1129, 25599), (1219, 23709), (3387, 8533), (3657, 7903)]