21052664

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154799}}^1$

素因数の和:154822

約数の個数: 16

約数和(自身を含む): 41796000

約数和(自身を除く): 20743336

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154799, 309598, 619196, 1238392, 2631583, 5263166, 10526332, 21052664]

約数ペア:

[(1, 21052664), (2, 10526332), (4, 5263166), (8, 2631583), (17, 1238392), (34, 619196), (68, 309598), (136, 154799)]