20686458

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2347}}^1$

素因数の和:2478

約数の個数: 32

約数和(自身を含む): 44968896

約数和(自身を除く): 24282438

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 113, 226, 339, 678, 1469, 2347, 2938, 4407, 4694, 7041, 8814, 14082, 30511, 61022, 91533, 183066, 265211, 530422, 795633, 1591266, 3447743, 6895486, 10343229, 20686458]

約数ペア:

[(1, 20686458), (2, 10343229), (3, 6895486), (6, 3447743), (13, 1591266), (26, 795633), (39, 530422), (78, 265211), (113, 183066), (226, 91533), (339, 61022), (678, 30511), (1469, 14082), (2347, 8814), (2938, 7041), (4407, 4694)]