21824048

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31721}}^1$

素因数の和:31772

約数の個数: 20

約数和(自身を含む): 43268808

約数和(自身を除く): 21444760

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31721, 63442, 126884, 253768, 507536, 1364003, 2728006, 5456012, 10912024, 21824048]

約数ペア:

[(1, 21824048), (2, 10912024), (4, 5456012), (8, 2728006), (16, 1364003), (43, 507536), (86, 253768), (172, 126884), (344, 63442), (688, 31721)]