20749974

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15937}}^1$

素因数の和:15980

約数の個数: 32

約数和(自身を含む): 48961536

約数和(自身を除く): 28211562

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 15937, 31874, 47811, 95622, 111559, 223118, 334677, 494047, 669354, 988094, 1482141, 2964282, 3458329, 6916658, 10374987, 20749974]

約数ペア:

[(1, 20749974), (2, 10374987), (3, 6916658), (6, 3458329), (7, 2964282), (14, 1482141), (21, 988094), (31, 669354), (42, 494047), (62, 334677), (93, 223118), (186, 111559), (217, 95622), (434, 47811), (651, 31874), (1302, 15937)]