18675972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2003}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 55438656

約数和(自身を除く): 36762684

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, 2003, 2331, 3108, 4006, 4662, 6009, 8012, 9324, 12018, 14021, 18027, 24036, 28042, 36054, 42063, 56084, 72108, 74111, 84126, 126189, 148222, 168252, 222333, 252378, 296444, 444666, 504756, 518777, 666999, 889332, 1037554, 1333998, 1556331, 2075108, 2667996, 3112662, 4668993, 6225324, 9337986, 18675972]

約数ペア:

[(1, 18675972), (2, 9337986), (3, 6225324), (4, 4668993), (6, 3112662), (7, 2667996), (9, 2075108), (12, 1556331), (14, 1333998), (18, 1037554), (21, 889332), (28, 666999), (36, 518777), (37, 504756), (42, 444666), (63, 296444), (74, 252378), (84, 222333), (111, 168252), (126, 148222), (148, 126189), (222, 84126), (252, 74111), (259, 72108), (333, 56084), (444, 42063), (518, 36054), (666, 28042), (777, 24036), (1036, 18027), (1332, 14021), (1554, 12018), (2003, 9324), (2331, 8012), (3108, 6009), (4006, 4662)]