20802164

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{461}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 37837800

約数和(自身を除く): 17035636

約数列:

[1, 2, 4, 29, 58, 116, 389, 461, 778, 922, 1556, 1844, 11281, 13369, 22562, 26738, 45124, 53476, 179329, 358658, 717316, 5200541, 10401082, 20802164]

約数ペア:

[(1, 20802164), (2, 10401082), (4, 5200541), (29, 717316), (58, 358658), (116, 179329), (389, 53476), (461, 45124), (778, 26738), (922, 22562), (1556, 13369), (1844, 11281)]