20398856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3121}}^1$

素因数の和:3189

約数の個数: 32

約数和(自身を含む): 41210400

約数和(自身を除く): 20811544

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3121, 3268, 6242, 6536, 12484, 24968, 59299, 118598, 134203, 237196, 268406, 474392, 536812, 1073624, 2549857, 5099714, 10199428, 20398856]

約数ペア:

[(1, 20398856), (2, 10199428), (4, 5099714), (8, 2549857), (19, 1073624), (38, 536812), (43, 474392), (76, 268406), (86, 237196), (152, 134203), (172, 118598), (344, 59299), (817, 24968), (1634, 12484), (3121, 6536), (3268, 6242)]