21473946

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:747

約数の個数: 48

約数和(自身を含む): 50502816

約数和(自身を除く): 29028870

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 163, 234, 326, 489, 563, 978, 1126, 1467, 1689, 2119, 2934, 3378, 4238, 5067, 6357, 7319, 10134, 12714, 14638, 19071, 21957, 38142, 43914, 65871, 91769, 131742, 183538, 275307, 550614, 825921, 1192997, 1651842, 2385994, 3578991, 7157982, 10736973, 21473946]

約数ペア:

[(1, 21473946), (2, 10736973), (3, 7157982), (6, 3578991), (9, 2385994), (13, 1651842), (18, 1192997), (26, 825921), (39, 550614), (78, 275307), (117, 183538), (163, 131742), (234, 91769), (326, 65871), (489, 43914), (563, 38142), (978, 21957), (1126, 19071), (1467, 14638), (1689, 12714), (2119, 10134), (2934, 7319), (3378, 6357), (4238, 5067)]