21675056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104207}}^1$

素因数の和:104228

約数の個数: 20

約数和(自身を含む): 45226272

約数和(自身を除く): 23551216

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104207, 208414, 416828, 833656, 1354691, 1667312, 2709382, 5418764, 10837528, 21675056]

約数ペア:

[(1, 21675056), (2, 10837528), (4, 5418764), (8, 2709382), (13, 1667312), (16, 1354691), (26, 833656), (52, 416828), (104, 208414), (208, 104207)]