18638676

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2053

約数の個数: 72

約数和(自身を含む): 55328000

約数和(自身を除く): 36689324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 1999, 2331, 3108, 3998, 4662, 5997, 7996, 9324, 11994, 13993, 17991, 23988, 27986, 35982, 41979, 55972, 71964, 73963, 83958, 125937, 147926, 167916, 221889, 251874, 295852, 443778, 503748, 517741, 665667, 887556, 1035482, 1331334, 1553223, 2070964, 2662668, 3106446, 4659669, 6212892, 9319338, 18638676]

約数ペア:

[(1, 18638676), (2, 9319338), (3, 6212892), (4, 4659669), (6, 3106446), (7, 2662668), (9, 2070964), (12, 1553223), (14, 1331334), (18, 1035482), (21, 887556), (28, 665667), (36, 517741), (37, 503748), (42, 443778), (63, 295852), (74, 251874), (84, 221889), (111, 167916), (126, 147926), (148, 125937), (222, 83958), (252, 73963), (259, 71964), (333, 55972), (444, 41979), (518, 35982), (666, 27986), (777, 23988), (1036, 17991), (1332, 13993), (1554, 11994), (1999, 9324), (2331, 7996), (3108, 5997), (3998, 4662)]