18856786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 31978800

約数和(自身を除く): 13122014

約数列:

[1, 2, 13, 26, 29, 58, 89, 178, 281, 377, 562, 754, 1157, 2314, 2581, 3653, 5162, 7306, 8149, 16298, 25009, 33553, 50018, 67106, 105937, 211874, 325117, 650234, 725261, 1450522, 9428393, 18856786]

約数ペア:

[(1, 18856786), (2, 9428393), (13, 1450522), (26, 725261), (29, 650234), (58, 325117), (89, 211874), (178, 105937), (281, 67106), (377, 50018), (562, 33553), (754, 25009), (1157, 16298), (2314, 8149), (2581, 7306), (3653, 5162)]