21743696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104537}}^1$

素因数の和:104558

約数の個数: 20

約数和(自身を含む): 45369492

約数和(自身を除く): 23625796

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104537, 209074, 418148, 836296, 1358981, 1672592, 2717962, 5435924, 10871848, 21743696]

約数ペア:

[(1, 21743696), (2, 10871848), (4, 5435924), (8, 2717962), (13, 1672592), (16, 1358981), (26, 836296), (52, 418148), (104, 209074), (208, 104537)]