19916488

素因数分解:

$2^3\times {\mathrm{41}}^2\times {\mathrm{1481}}^1$

素因数の和:1569

約数の個数: 24

約数和(自身を含む): 38302290

約数和(自身を除く): 18385802

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 1481, 1681, 2962, 3362, 5924, 6724, 11848, 13448, 60721, 121442, 242884, 485768, 2489561, 4979122, 9958244, 19916488]

約数ペア:

[(1, 19916488), (2, 9958244), (4, 4979122), (8, 2489561), (41, 485768), (82, 242884), (164, 121442), (328, 60721), (1481, 13448), (1681, 11848), (2962, 6724), (3362, 5924)]