18517464

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 128

約数和(自身を含む): 60556800

約数和(自身を除く): 42039336

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 37, 42, 54, 56, 63, 72, 74, 84, 108, 111, 126, 148, 168, 189, 216, 222, 252, 259, 296, 331, 333, 378, 444, 504, 518, 662, 666, 756, 777, 888, 993, 999, 1036, 1324, 1332, 1512, 1554, 1986, 1998, 2072, 2317, 2331, 2648, 2664, 2979, 3108, 3972, 3996, 4634, 4662, 5958, 6216, 6951, 6993, 7944, 7992, 8937, 9268, 9324, 11916, 12247, 13902, 13986, 17874, 18536, 18648, 20853, 23832, 24494, 27804, 27972, 35748, 36741, 41706, 48988, 55608, 55944, 62559, 71496, 73482, 83412, 85729, 97976, 110223, 125118, 146964, 166824, 171458, 220446, 250236, 257187, 293928, 330669, 342916, 440892, 500472, 514374, 661338, 685832, 771561, 881784, 1028748, 1322676, 1543122, 2057496, 2314683, 2645352, 3086244, 4629366, 6172488, 9258732, 18517464]

約数ペア:

[(1, 18517464), (2, 9258732), (3, 6172488), (4, 4629366), (6, 3086244), (7, 2645352), (8, 2314683), (9, 2057496), (12, 1543122), (14, 1322676), (18, 1028748), (21, 881784), (24, 771561), (27, 685832), (28, 661338), (36, 514374), (37, 500472), (42, 440892), (54, 342916), (56, 330669), (63, 293928), (72, 257187), (74, 250236), (84, 220446), (108, 171458), (111, 166824), (126, 146964), (148, 125118), (168, 110223), (189, 97976), (216, 85729), (222, 83412), (252, 73482), (259, 71496), (296, 62559), (331, 55944), (333, 55608), (378, 48988), (444, 41706), (504, 36741), (518, 35748), (662, 27972), (666, 27804), (756, 24494), (777, 23832), (888, 20853), (993, 18648), (999, 18536), (1036, 17874), (1324, 13986), (1332, 13902), (1512, 12247), (1554, 11916), (1986, 9324), (1998, 9268), (2072, 8937), (2317, 7992), (2331, 7944), (2648, 6993), (2664, 6951), (2979, 6216), (3108, 5958), (3972, 4662), (3996, 4634)]