20985078

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 43591680

約数和(自身を除く): 22606602

約数列:

[1, 2, 3, 6, 31, 62, 93, 186, 257, 439, 514, 771, 878, 1317, 1542, 2634, 7967, 13609, 15934, 23901, 27218, 40827, 47802, 81654, 112823, 225646, 338469, 676938, 3497513, 6995026, 10492539, 20985078]

約数ペア:

[(1, 20985078), (2, 10492539), (3, 6995026), (6, 3497513), (31, 676938), (62, 338469), (93, 225646), (186, 112823), (257, 81654), (439, 47802), (514, 40827), (771, 27218), (878, 23901), (1317, 15934), (1542, 13609), (2634, 7967)]