20770892

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{613}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 37444176

約数和(自身を除く): 16673284

約数列:

[1, 2, 4, 43, 86, 172, 197, 394, 613, 788, 1226, 2452, 8471, 16942, 26359, 33884, 52718, 105436, 120761, 241522, 483044, 5192723, 10385446, 20770892]

約数ペア:

[(1, 20770892), (2, 10385446), (4, 5192723), (43, 483044), (86, 241522), (172, 120761), (197, 105436), (394, 52718), (613, 33884), (788, 26359), (1226, 16942), (2452, 8471)]