20664028

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2917}}^1$

素因数の和:2962

約数の個数: 48

約数和(自身を含む): 47061504

約数和(自身を除く): 26397476

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 161, 253, 308, 322, 506, 644, 1012, 1771, 2917, 3542, 5834, 7084, 11668, 20419, 32087, 40838, 64174, 67091, 81676, 128348, 134182, 224609, 268364, 449218, 469637, 738001, 898436, 939274, 1476002, 1878548, 2952004, 5166007, 10332014, 20664028]

約数ペア:

[(1, 20664028), (2, 10332014), (4, 5166007), (7, 2952004), (11, 1878548), (14, 1476002), (22, 939274), (23, 898436), (28, 738001), (44, 469637), (46, 449218), (77, 268364), (92, 224609), (154, 134182), (161, 128348), (253, 81676), (308, 67091), (322, 64174), (506, 40838), (644, 32087), (1012, 20419), (1771, 11668), (2917, 7084), (3542, 5834)]