21008484

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 120

約数和(自身を含む): 64236480

約数和(自身を除く): 43227996

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 59, 63, 81, 84, 108, 118, 126, 157, 162, 177, 189, 236, 252, 314, 324, 354, 378, 413, 471, 531, 567, 628, 708, 756, 826, 942, 1062, 1099, 1134, 1239, 1413, 1593, 1652, 1884, 2124, 2198, 2268, 2478, 2826, 3186, 3297, 3717, 4239, 4396, 4779, 4956, 5652, 6372, 6594, 7434, 8478, 9263, 9558, 9891, 11151, 12717, 13188, 14868, 16956, 18526, 19116, 19782, 22302, 25434, 27789, 29673, 33453, 37052, 39564, 44604, 50868, 55578, 59346, 64841, 66906, 83367, 89019, 111156, 118692, 129682, 133812, 166734, 178038, 194523, 250101, 259364, 333468, 356076, 389046, 500202, 583569, 750303, 778092, 1000404, 1167138, 1500606, 1750707, 2334276, 3001212, 3501414, 5252121, 7002828, 10504242, 21008484]

約数ペア:

[(1, 21008484), (2, 10504242), (3, 7002828), (4, 5252121), (6, 3501414), (7, 3001212), (9, 2334276), (12, 1750707), (14, 1500606), (18, 1167138), (21, 1000404), (27, 778092), (28, 750303), (36, 583569), (42, 500202), (54, 389046), (59, 356076), (63, 333468), (81, 259364), (84, 250101), (108, 194523), (118, 178038), (126, 166734), (157, 133812), (162, 129682), (177, 118692), (189, 111156), (236, 89019), (252, 83367), (314, 66906), (324, 64841), (354, 59346), (378, 55578), (413, 50868), (471, 44604), (531, 39564), (567, 37052), (628, 33453), (708, 29673), (756, 27789), (826, 25434), (942, 22302), (1062, 19782), (1099, 19116), (1134, 18526), (1239, 16956), (1413, 14868), (1593, 13188), (1652, 12717), (1884, 11151), (2124, 9891), (2198, 9558), (2268, 9263), (2478, 8478), (2826, 7434), (3186, 6594), (3297, 6372), (3717, 5652), (4239, 4956), (4396, 4779)]