21245744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4441}}^1$

素因数の和:4485

約数の個数: 40

約数和(自身を含む): 46267872

約数和(自身を除く): 25022128

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4441, 4784, 8882, 17764, 35528, 57733, 71056, 102143, 115466, 204286, 230932, 408572, 461864, 817144, 923728, 1327859, 1634288, 2655718, 5311436, 10622872, 21245744]

約数ペア:

[(1, 21245744), (2, 10622872), (4, 5311436), (8, 2655718), (13, 1634288), (16, 1327859), (23, 923728), (26, 817144), (46, 461864), (52, 408572), (92, 230932), (104, 204286), (184, 115466), (208, 102143), (299, 71056), (368, 57733), (598, 35528), (1196, 17764), (2392, 8882), (4441, 4784)]