20722286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 35779968

約数和(自身を除く): 15057682

約数列:

[1, 2, 13, 17, 26, 34, 173, 221, 271, 346, 442, 542, 2249, 2941, 3523, 4498, 4607, 5882, 7046, 9214, 38233, 46883, 59891, 76466, 93766, 119782, 609479, 797011, 1218958, 1594022, 10361143, 20722286]

約数ペア:

[(1, 20722286), (2, 10361143), (13, 1594022), (17, 1218958), (26, 797011), (34, 609479), (173, 119782), (221, 93766), (271, 76466), (346, 59891), (442, 46883), (542, 38233), (2249, 9214), (2941, 7046), (3523, 5882), (4498, 4607)]