28434357

素因数分解:

$3^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 49004800

約数和(自身を除く): 20570443

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 151, 183, 343, 427, 441, 453, 549, 1029, 1057, 1281, 1359, 2989, 3087, 3171, 3843, 7399, 8967, 9211, 9513, 20923, 22197, 26901, 27633, 51793, 62769, 64477, 66591, 82899, 155379, 188307, 193431, 451339, 466137, 580293, 1354017, 3159373, 4062051, 9478119, 28434357]

約数ペア:

[(1, 28434357), (3, 9478119), (7, 4062051), (9, 3159373), (21, 1354017), (49, 580293), (61, 466137), (63, 451339), (147, 193431), (151, 188307), (183, 155379), (343, 82899), (427, 66591), (441, 64477), (453, 62769), (549, 51793), (1029, 27633), (1057, 26901), (1281, 22197), (1359, 20923), (2989, 9513), (3087, 9211), (3171, 8967), (3843, 7399)]