18891768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{809}}^1$

素因数の和:964

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 35540232

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 139, 168, 278, 417, 556, 809, 834, 973, 1112, 1618, 1668, 1946, 2427, 2919, 3236, 3336, 3892, 4854, 5663, 5838, 6472, 7784, 9708, 11326, 11676, 16989, 19416, 22652, 23352, 33978, 45304, 67956, 112451, 135912, 224902, 337353, 449804, 674706, 787157, 899608, 1349412, 1574314, 2361471, 2698824, 3148628, 4722942, 6297256, 9445884, 18891768]

約数ペア:

[(1, 18891768), (2, 9445884), (3, 6297256), (4, 4722942), (6, 3148628), (7, 2698824), (8, 2361471), (12, 1574314), (14, 1349412), (21, 899608), (24, 787157), (28, 674706), (42, 449804), (56, 337353), (84, 224902), (139, 135912), (168, 112451), (278, 67956), (417, 45304), (556, 33978), (809, 23352), (834, 22652), (973, 19416), (1112, 16989), (1618, 11676), (1668, 11326), (1946, 9708), (2427, 7784), (2919, 6472), (3236, 5838), (3336, 5663), (3892, 4854)]