21525008

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6829}}^1$

素因数の和:7034

約数の個数: 20

約数和(自身を含む): 41922540

約数和(自身を除く): 20397532

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6829, 13658, 27316, 54632, 109264, 1345313, 2690626, 5381252, 10762504, 21525008]

約数ペア:

[(1, 21525008), (2, 10762504), (4, 5381252), (8, 2690626), (16, 1345313), (197, 109264), (394, 54632), (788, 27316), (1576, 13658), (3152, 6829)]