18711972

素因数分解:

$2^2\times 3^8\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:82

約数の個数: 108

約数和(自身を含む): 52905216

約数和(自身を除く): 34193244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 31, 36, 46, 54, 62, 69, 81, 92, 93, 108, 124, 138, 162, 186, 207, 243, 276, 279, 324, 372, 414, 486, 558, 621, 713, 729, 828, 837, 972, 1116, 1242, 1426, 1458, 1674, 1863, 2139, 2187, 2484, 2511, 2852, 2916, 3348, 3726, 4278, 4374, 5022, 5589, 6417, 6561, 7452, 7533, 8556, 8748, 10044, 11178, 12834, 13122, 15066, 16767, 19251, 22356, 22599, 25668, 26244, 30132, 33534, 38502, 45198, 50301, 57753, 67068, 67797, 77004, 90396, 100602, 115506, 135594, 150903, 173259, 201204, 203391, 231012, 271188, 301806, 346518, 406782, 519777, 603612, 693036, 813564, 1039554, 1559331, 2079108, 3118662, 4677993, 6237324, 9355986, 18711972]

約数ペア:

[(1, 18711972), (2, 9355986), (3, 6237324), (4, 4677993), (6, 3118662), (9, 2079108), (12, 1559331), (18, 1039554), (23, 813564), (27, 693036), (31, 603612), (36, 519777), (46, 406782), (54, 346518), (62, 301806), (69, 271188), (81, 231012), (92, 203391), (93, 201204), (108, 173259), (124, 150903), (138, 135594), (162, 115506), (186, 100602), (207, 90396), (243, 77004), (276, 67797), (279, 67068), (324, 57753), (372, 50301), (414, 45198), (486, 38502), (558, 33534), (621, 30132), (713, 26244), (729, 25668), (828, 22599), (837, 22356), (972, 19251), (1116, 16767), (1242, 15066), (1426, 13122), (1458, 12834), (1674, 11178), (1863, 10044), (2139, 8748), (2187, 8556), (2484, 7533), (2511, 7452), (2852, 6561), (2916, 6417), (3348, 5589), (3726, 5022), (4278, 4374)]