18520918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:292

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 12444842

約数列:

[1, 2, 13, 26, 71, 79, 127, 142, 158, 254, 923, 1027, 1651, 1846, 2054, 3302, 5609, 9017, 10033, 11218, 18034, 20066, 72917, 117221, 130429, 145834, 234442, 260858, 712343, 1424686, 9260459, 18520918]

約数ペア:

[(1, 18520918), (2, 9260459), (13, 1424686), (26, 712343), (71, 260858), (79, 234442), (127, 145834), (142, 130429), (158, 117221), (254, 72917), (923, 20066), (1027, 18034), (1651, 11218), (1846, 10033), (2054, 9017), (3302, 5609)]