16557541

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 24131520

約数和(自身を除く): 7573979

約数列:

[1, 7, 11, 13, 17, 49, 77, 91, 119, 139, 143, 187, 221, 539, 637, 833, 973, 1001, 1309, 1529, 1547, 1807, 2363, 2431, 6811, 7007, 9163, 10703, 10829, 12649, 16541, 17017, 19877, 25993, 30719, 74921, 88543, 115787, 119119, 139139, 181951, 215033, 337909, 973973, 1273657, 1505231, 2365363, 16557541]

約数ペア:

[(1, 16557541), (7, 2365363), (11, 1505231), (13, 1273657), (17, 973973), (49, 337909), (77, 215033), (91, 181951), (119, 139139), (139, 119119), (143, 115787), (187, 88543), (221, 74921), (539, 30719), (637, 25993), (833, 19877), (973, 17017), (1001, 16541), (1309, 12649), (1529, 10829), (1547, 10703), (1807, 9163), (2363, 7007), (2431, 6811)]