19354671

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4327}}^1$

素因数の和:4411

約数の個数: 24

約数和(自身を含む): 32408064

約数和(自身を除く): 13053393

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4327, 4473, 12981, 30289, 38943, 90867, 272601, 307217, 921651, 2150519, 2764953, 6451557, 19354671]

約数ペア:

[(1, 19354671), (3, 6451557), (7, 2764953), (9, 2150519), (21, 921651), (63, 307217), (71, 272601), (213, 90867), (497, 38943), (639, 30289), (1491, 12981), (4327, 4473)]