20958197

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 24507360

約数和(自身を除く): 3549163

約数列:

[1, 13, 19, 61, 107, 169, 247, 793, 1159, 1391, 2033, 3211, 6527, 10309, 15067, 18083, 26429, 84851, 124013, 195871, 343577, 1103063, 1612169, 20958197]

約数ペア:

[(1, 20958197), (13, 1612169), (19, 1103063), (61, 343577), (107, 195871), (169, 124013), (247, 84851), (793, 26429), (1159, 18083), (1391, 15067), (2033, 10309), (3211, 6527)]