215581964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{243871}}^1$

素因数の和:243905

約数の個数: 24

約数和(自身を含む): 430190208

約数和(自身を除く): 214608244

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 243871, 487742, 975484, 3170323, 4145807, 6340646, 8291614, 12681292, 16583228, 53895491, 107790982, 215581964]

約数ペア:

[(1, 215581964), (2, 107790982), (4, 53895491), (13, 16583228), (17, 12681292), (26, 8291614), (34, 6340646), (52, 4145807), (68, 3170323), (221, 975484), (442, 487742), (884, 243871)]