21270291536

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102261017}}^1$

素因数の和:102261038

約数の個数: 20

約数和(自身を含む): 44381281812

約数和(自身を除く): 23110990276

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102261017, 204522034, 409044068, 818088136, 1329393221, 1636176272, 2658786442, 5317572884, 10635145768, 21270291536]

約数ペア:

[(1, 21270291536), (2, 10635145768), (4, 5317572884), (8, 2658786442), (13, 1636176272), (16, 1329393221), (26, 818088136), (52, 409044068), (104, 204522034), (208, 102261017)]