20840853

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 32693760

約数和(自身を除く): 11852907

約数列:

[1, 3, 11, 19, 33, 43, 57, 129, 209, 473, 627, 773, 817, 1419, 2319, 2451, 8503, 8987, 14687, 25509, 26961, 33239, 44061, 99717, 161557, 365629, 484671, 631541, 1096887, 1894623, 6946951, 20840853]

約数ペア:

[(1, 20840853), (3, 6946951), (11, 1894623), (19, 1096887), (33, 631541), (43, 484671), (57, 365629), (129, 161557), (209, 99717), (473, 44061), (627, 33239), (773, 26961), (817, 25509), (1419, 14687), (2319, 8987), (2451, 8503)]