20952592

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:623

約数の個数: 40

約数和(自身を含む): 43102400

約数和(自身を除く): 22149808

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 157, 304, 314, 439, 628, 878, 1256, 1756, 2512, 2983, 3512, 5966, 7024, 8341, 11932, 16682, 23864, 33364, 47728, 66728, 68923, 133456, 137846, 275692, 551384, 1102768, 1309537, 2619074, 5238148, 10476296, 20952592]

約数ペア:

[(1, 20952592), (2, 10476296), (4, 5238148), (8, 2619074), (16, 1309537), (19, 1102768), (38, 551384), (76, 275692), (152, 137846), (157, 133456), (304, 68923), (314, 66728), (439, 47728), (628, 33364), (878, 23864), (1256, 16682), (1756, 11932), (2512, 8341), (2983, 7024), (3512, 5966)]