20664592

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99349}}^1$

素因数の和:99370

約数の個数: 20

約数和(自身を含む): 43117900

約数和(自身を除く): 22453308

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99349, 198698, 397396, 794792, 1291537, 1589584, 2583074, 5166148, 10332296, 20664592]

約数ペア:

[(1, 20664592), (2, 10332296), (4, 5166148), (8, 2583074), (13, 1589584), (16, 1291537), (26, 794792), (52, 397396), (104, 198698), (208, 99349)]