19888726

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 35326368

約数和(自身を除く): 15437642

約数列:

[1, 2, 11, 13, 22, 26, 143, 197, 286, 353, 394, 706, 2167, 2561, 3883, 4334, 4589, 5122, 7766, 9178, 28171, 50479, 56342, 69541, 100958, 139082, 764951, 904033, 1529902, 1808066, 9944363, 19888726]

約数ペア:

[(1, 19888726), (2, 9944363), (11, 1808066), (13, 1529902), (22, 904033), (26, 764951), (143, 139082), (197, 100958), (286, 69541), (353, 56342), (394, 50479), (706, 28171), (2167, 9178), (2561, 7766), (3883, 5122), (4334, 4589)]