21048176

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77383}}^1$

素因数の和:77408

約数の個数: 20

約数和(自身を含む): 43180272

約数和(自身を除く): 22132096

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77383, 154766, 309532, 619064, 1238128, 1315511, 2631022, 5262044, 10524088, 21048176]

約数ペア:

[(1, 21048176), (2, 10524088), (4, 5262044), (8, 2631022), (16, 1315511), (17, 1238128), (34, 619064), (68, 309532), (136, 154766), (272, 77383)]