21554768

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{16231}}^1$

素因数の和:16322

約数の個数: 20

約数和(自身を含む): 42268128

約数和(自身を除く): 20713360

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 16231, 32462, 64924, 129848, 259696, 1347173, 2694346, 5388692, 10777384, 21554768]

約数ペア:

[(1, 21554768), (2, 10777384), (4, 5388692), (8, 2694346), (16, 1347173), (83, 259696), (166, 129848), (332, 64924), (664, 32462), (1328, 16231)]