20457654

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4729}}^1$

素因数の和:4844

約数の個数: 32

約数和(自身を含む): 47224320

約数和(自身を除く): 26766666

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 103, 206, 309, 618, 721, 1442, 2163, 4326, 4729, 9458, 14187, 28374, 33103, 66206, 99309, 198618, 487087, 974174, 1461261, 2922522, 3409609, 6819218, 10228827, 20457654]

約数ペア:

[(1, 20457654), (2, 10228827), (3, 6819218), (6, 3409609), (7, 2922522), (14, 1461261), (21, 974174), (42, 487087), (103, 198618), (206, 99309), (309, 66206), (618, 33103), (721, 28374), (1442, 14187), (2163, 9458), (4326, 4729)]