20609384

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 39879840

約数和(自身を除く): 19270456

約数列:

[1, 2, 4, 8, 43, 86, 172, 181, 331, 344, 362, 662, 724, 1324, 1448, 2648, 7783, 14233, 15566, 28466, 31132, 56932, 59911, 62264, 113864, 119822, 239644, 479288, 2576173, 5152346, 10304692, 20609384]

約数ペア:

[(1, 20609384), (2, 10304692), (4, 5152346), (8, 2576173), (43, 479288), (86, 239644), (172, 119822), (181, 113864), (331, 62264), (344, 59911), (362, 56932), (662, 31132), (724, 28466), (1324, 15566), (1448, 14233), (2648, 7783)]