21696870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55633}}^1$

素因数の和:55656

約数の個数: 32

約数和(自身を含む): 56079072

約数和(自身を除く): 34382202

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55633, 111266, 166899, 278165, 333798, 556330, 723229, 834495, 1446458, 1668990, 2169687, 3616145, 4339374, 7232290, 10848435, 21696870]

約数ペア:

[(1, 21696870), (2, 10848435), (3, 7232290), (5, 4339374), (6, 3616145), (10, 2169687), (13, 1668990), (15, 1446458), (26, 834495), (30, 723229), (39, 556330), (65, 333798), (78, 278165), (130, 166899), (195, 111266), (390, 55633)]