19808379

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 29467152

約数和(自身を除く): 9658773

約数列:

[1, 3, 9, 53, 131, 159, 317, 393, 477, 951, 1179, 2853, 6943, 16801, 20829, 41527, 50403, 62487, 124581, 151209, 373743, 2200931, 6602793, 19808379]

約数ペア:

[(1, 19808379), (3, 6602793), (9, 2200931), (53, 373743), (131, 151209), (159, 124581), (317, 62487), (393, 50403), (477, 41527), (951, 20829), (1179, 16801), (2853, 6943)]