21386928

素因数分解:

$2^4\times 3^1\times {\mathrm{199}}^1\times {\mathrm{2239}}^1$

素因数の和:2449

約数の個数: 40

約数和(自身を含む): 55552000

約数和(自身を除く): 34165072

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 199, 398, 597, 796, 1194, 1592, 2239, 2388, 3184, 4478, 4776, 6717, 8956, 9552, 13434, 17912, 26868, 35824, 53736, 107472, 445561, 891122, 1336683, 1782244, 2673366, 3564488, 5346732, 7128976, 10693464, 21386928]

約数ペア:

[(1, 21386928), (2, 10693464), (3, 7128976), (4, 5346732), (6, 3564488), (8, 2673366), (12, 1782244), (16, 1336683), (24, 891122), (48, 445561), (199, 107472), (398, 53736), (597, 35824), (796, 26868), (1194, 17912), (1592, 13434), (2239, 9552), (2388, 8956), (3184, 6717), (4478, 4776)]