18953445

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 35754048

約数和(自身を除く): 16800603

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 107, 147, 241, 245, 321, 535, 723, 735, 749, 1205, 1605, 1687, 2247, 3615, 3745, 5061, 5243, 8435, 11235, 11809, 15729, 25305, 25787, 26215, 35427, 59045, 77361, 78645, 128935, 177135, 180509, 386805, 541527, 902545, 1263563, 2707635, 3790689, 6317815, 18953445]

約数ペア:

[(1, 18953445), (3, 6317815), (5, 3790689), (7, 2707635), (15, 1263563), (21, 902545), (35, 541527), (49, 386805), (105, 180509), (107, 177135), (147, 128935), (241, 78645), (245, 77361), (321, 59045), (535, 35427), (723, 26215), (735, 25787), (749, 25305), (1205, 15729), (1605, 11809), (1687, 11235), (2247, 8435), (3615, 5243), (3745, 5061)]