21491339

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:566

約数の個数: 16

約数和(自身を含む): 23390976

約数和(自身を除く): 1899637

約数列:

[1, 31, 37, 41, 457, 1147, 1271, 1517, 14167, 16909, 18737, 47027, 524179, 580847, 693269, 21491339]

約数ペア:

[(1, 21491339), (31, 693269), (37, 580847), (41, 524179), (457, 47027), (1147, 18737), (1271, 16909), (1517, 14167)]