28009431

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 41505776

約数和(自身を除く): 13496345

約数列:

[1, 3, 9, 61, 163, 183, 313, 489, 549, 939, 1467, 2817, 9943, 19093, 29829, 51019, 57279, 89487, 153057, 171837, 459171, 3112159, 9336477, 28009431]

約数ペア:

[(1, 28009431), (3, 9336477), (9, 3112159), (61, 459171), (163, 171837), (183, 153057), (313, 89487), (489, 57279), (549, 51019), (939, 29829), (1467, 19093), (2817, 9943)]