21132795

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19843}}^1$

素因数の和:19922

約数の個数: 16

約数和(自身を含む): 34290432

約数和(自身を除く): 13157637

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19843, 59529, 99215, 297645, 1408853, 4226559, 7044265, 21132795]

約数ペア:

[(1, 21132795), (3, 7044265), (5, 4226559), (15, 1408853), (71, 297645), (213, 99215), (355, 59529), (1065, 19843)]