19958904

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{199}}^2$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 62089560

約数和(自身を除く): 42130656

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 199, 252, 398, 504, 597, 796, 1194, 1393, 1592, 1791, 2388, 2786, 3582, 4179, 4776, 5572, 7164, 8358, 11144, 12537, 14328, 16716, 25074, 33432, 39601, 50148, 79202, 100296, 118803, 158404, 237606, 277207, 316808, 356409, 475212, 554414, 712818, 831621, 950424, 1108828, 1425636, 1663242, 2217656, 2494863, 2851272, 3326484, 4989726, 6652968, 9979452, 19958904]

約数ペア:

[(1, 19958904), (2, 9979452), (3, 6652968), (4, 4989726), (6, 3326484), (7, 2851272), (8, 2494863), (9, 2217656), (12, 1663242), (14, 1425636), (18, 1108828), (21, 950424), (24, 831621), (28, 712818), (36, 554414), (42, 475212), (56, 356409), (63, 316808), (72, 277207), (84, 237606), (126, 158404), (168, 118803), (199, 100296), (252, 79202), (398, 50148), (504, 39601), (597, 33432), (796, 25074), (1194, 16716), (1393, 14328), (1592, 12537), (1791, 11144), (2388, 8358), (2786, 7164), (3582, 5572), (4179, 4776)]