28031283

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3739}}^1$

素因数の和:3776

約数の個数: 36

約数和(自身を含む): 49884120

約数和(自身を除く): 21852837

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 3739, 7497, 11217, 26173, 33651, 63563, 78519, 183211, 190689, 235557, 444941, 549633, 572067, 1334823, 1648899, 3114587, 4004469, 9343761, 28031283]

約数ペア:

[(1, 28031283), (3, 9343761), (7, 4004469), (9, 3114587), (17, 1648899), (21, 1334823), (49, 572067), (51, 549633), (63, 444941), (119, 235557), (147, 190689), (153, 183211), (357, 78519), (441, 63563), (833, 33651), (1071, 26173), (2499, 11217), (3739, 7497)]