20862488

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{42751}}^1$

素因数の和:42818

約数の個数: 16

約数和(自身を含む): 39759360

約数和(自身を除く): 18896872

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 42751, 85502, 171004, 342008, 2607811, 5215622, 10431244, 20862488]

約数ペア:

[(1, 20862488), (2, 10431244), (4, 5215622), (8, 2607811), (61, 342008), (122, 171004), (244, 85502), (488, 42751)]