20813198

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{673}}^1$

素因数の和:776

約数の個数: 24

約数和(自身を含む): 36509232

約数和(自身を除く): 15696034

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 673, 1346, 2209, 4418, 4711, 9422, 15463, 30926, 31631, 63262, 221417, 442834, 1486657, 2973314, 10406599, 20813198]

約数ペア:

[(1, 20813198), (2, 10406599), (7, 2973314), (14, 1486657), (47, 442834), (94, 221417), (329, 63262), (658, 31631), (673, 30926), (1346, 15463), (2209, 9422), (4418, 4711)]