20679854

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 36761040

約数和(自身を除く): 16081186

約数列:

[1, 2, 13, 17, 26, 34, 59, 61, 118, 122, 169, 221, 338, 442, 767, 793, 1003, 1037, 1534, 1586, 2006, 2074, 2873, 3599, 5746, 7198, 9971, 10309, 13039, 13481, 19942, 20618, 26078, 26962, 46787, 61183, 93574, 122366, 169507, 175253, 339014, 350506, 608231, 795379, 1216462, 1590758, 10339927, 20679854]

約数ペア:

[(1, 20679854), (2, 10339927), (13, 1590758), (17, 1216462), (26, 795379), (34, 608231), (59, 350506), (61, 339014), (118, 175253), (122, 169507), (169, 122366), (221, 93574), (338, 61183), (442, 46787), (767, 26962), (793, 26078), (1003, 20618), (1037, 19942), (1534, 13481), (1586, 13039), (2006, 10309), (2074, 9971), (2873, 7198), (3599, 5746)]