20687584

素因数分解:

$2^5\times {\mathrm{83}}^1\times {\mathrm{7789}}^1$

素因数の和:7882

約数の個数: 24

約数和(自身を含む): 41224680

約数和(自身を除く): 20537096

約数列:

[1, 2, 4, 8, 16, 32, 83, 166, 332, 664, 1328, 2656, 7789, 15578, 31156, 62312, 124624, 249248, 646487, 1292974, 2585948, 5171896, 10343792, 20687584]

約数ペア:

[(1, 20687584), (2, 10343792), (4, 5171896), (8, 2585948), (16, 1292974), (32, 646487), (83, 249248), (166, 124624), (332, 62312), (664, 31156), (1328, 15578), (2656, 7789)]