21375801

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1093}}^1$

素因数の和:1193

約数の個数: 24

約数和(自身を含む): 32255496

約数和(自身を除く): 10879695

約数列:

[1, 3, 9, 41, 53, 123, 159, 369, 477, 1093, 2173, 3279, 6519, 9837, 19557, 44813, 57929, 134439, 173787, 403317, 521361, 2375089, 7125267, 21375801]

約数ペア:

[(1, 21375801), (3, 7125267), (9, 2375089), (41, 521361), (53, 403317), (123, 173787), (159, 134439), (369, 57929), (477, 44813), (1093, 19557), (2173, 9837), (3279, 6519)]