217065912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1997}}^1$

素因数の和:2660

約数の個数: 64

約数和(自身を含む): 621457920

約数和(自身を除く): 404392008

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 647, 1294, 1941, 1997, 2588, 3882, 3994, 4529, 5176, 5991, 7764, 7988, 9058, 11982, 13587, 13979, 15528, 15976, 18116, 23964, 27174, 27958, 36232, 41937, 47928, 54348, 55916, 83874, 108696, 111832, 167748, 335496, 1292059, 2584118, 3876177, 5168236, 7752354, 9044413, 10336472, 15504708, 18088826, 27133239, 31009416, 36177652, 54266478, 72355304, 108532956, 217065912]

約数ペア:

[(1, 217065912), (2, 108532956), (3, 72355304), (4, 54266478), (6, 36177652), (7, 31009416), (8, 27133239), (12, 18088826), (14, 15504708), (21, 10336472), (24, 9044413), (28, 7752354), (42, 5168236), (56, 3876177), (84, 2584118), (168, 1292059), (647, 335496), (1294, 167748), (1941, 111832), (1997, 108696), (2588, 83874), (3882, 55916), (3994, 54348), (4529, 47928), (5176, 41937), (5991, 36232), (7764, 27958), (7988, 27174), (9058, 23964), (11982, 18116), (13587, 15976), (13979, 15528)]