20425418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 14652982

約数列:

[1, 2, 13, 19, 26, 38, 173, 239, 247, 346, 478, 494, 2249, 3107, 3287, 4498, 4541, 6214, 6574, 9082, 41347, 42731, 59033, 82694, 85462, 118066, 537511, 785593, 1075022, 1571186, 10212709, 20425418]

約数ペア:

[(1, 20425418), (2, 10212709), (13, 1571186), (19, 1075022), (26, 785593), (38, 537511), (173, 118066), (239, 85462), (247, 82694), (346, 59033), (478, 42731), (494, 41347), (2249, 9082), (3107, 6574), (3287, 6214), (4498, 4541)]