21163974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271333}}^1$

素因数の和:271351

約数の個数: 16

約数和(自身を含む): 45584112

約数和(自身を除く): 24420138

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 271333, 542666, 813999, 1627998, 3527329, 7054658, 10581987, 21163974]

約数ペア:

[(1, 21163974), (2, 10581987), (3, 7054658), (6, 3527329), (13, 1627998), (26, 813999), (39, 542666), (78, 271333)]