20701821

素因数分解:

$3^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{5903}}^1$

素因数の和:6080

約数の個数: 16

約数和(自身を含む): 31739904

約数和(自身を除く): 11038083

約数列:

[1, 3, 7, 21, 167, 501, 1169, 3507, 5903, 17709, 41321, 123963, 985801, 2957403, 6900607, 20701821]

約数ペア:

[(1, 20701821), (3, 6900607), (7, 2957403), (21, 985801), (167, 123963), (501, 41321), (1169, 17709), (3507, 5903)]