20217964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{22871}}^1$

素因数の和:22905

約数の個数: 24

約数和(自身を含む): 40346208

約数和(自身を除く): 20128244

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 22871, 45742, 91484, 297323, 388807, 594646, 777614, 1189292, 1555228, 5054491, 10108982, 20217964]

約数ペア:

[(1, 20217964), (2, 10108982), (4, 5054491), (13, 1555228), (17, 1189292), (26, 777614), (34, 594646), (52, 388807), (68, 297323), (221, 91484), (442, 45742), (884, 22871)]