218756408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{123731}}^1$

素因数の和:123767

約数の個数: 32

約数和(自身を含む): 467706960

約数和(自身を除く): 248950552

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 123731, 247462, 494924, 989848, 1608503, 2103427, 3217006, 4206854, 6434012, 8413708, 12868024, 16827416, 27344551, 54689102, 109378204, 218756408]

約数ペア:

[(1, 218756408), (2, 109378204), (4, 54689102), (8, 27344551), (13, 16827416), (17, 12868024), (26, 8413708), (34, 6434012), (52, 4206854), (68, 3217006), (104, 2103427), (136, 1608503), (221, 989848), (442, 494924), (884, 247462), (1768, 123731)]