20681784

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^2\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 60387600

約数和(自身を除く): 39705816

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 54, 69, 72, 92, 108, 138, 181, 184, 207, 216, 276, 362, 414, 529, 543, 552, 621, 724, 828, 1058, 1086, 1242, 1448, 1587, 1629, 1656, 2116, 2172, 2484, 3174, 3258, 4163, 4232, 4344, 4761, 4887, 4968, 6348, 6516, 8326, 9522, 9774, 12489, 12696, 13032, 14283, 16652, 19044, 19548, 24978, 28566, 33304, 37467, 38088, 39096, 49956, 57132, 74934, 95749, 99912, 112401, 114264, 149868, 191498, 224802, 287247, 299736, 382996, 449604, 574494, 765992, 861741, 899208, 1148988, 1723482, 2297976, 2585223, 3446964, 5170446, 6893928, 10340892, 20681784]

約数ペア:

[(1, 20681784), (2, 10340892), (3, 6893928), (4, 5170446), (6, 3446964), (8, 2585223), (9, 2297976), (12, 1723482), (18, 1148988), (23, 899208), (24, 861741), (27, 765992), (36, 574494), (46, 449604), (54, 382996), (69, 299736), (72, 287247), (92, 224802), (108, 191498), (138, 149868), (181, 114264), (184, 112401), (207, 99912), (216, 95749), (276, 74934), (362, 57132), (414, 49956), (529, 39096), (543, 38088), (552, 37467), (621, 33304), (724, 28566), (828, 24978), (1058, 19548), (1086, 19044), (1242, 16652), (1448, 14283), (1587, 13032), (1629, 12696), (1656, 12489), (2116, 9774), (2172, 9522), (2484, 8326), (3174, 6516), (3258, 6348), (4163, 4968), (4232, 4887), (4344, 4761)]