28367703

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1823}}^1$

素因数の和:1868

約数の個数: 48

約数和(自身を含む): 53114880

約数和(自身を除く): 24747177

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1729, 1823, 2223, 5187, 5469, 12761, 15561, 16407, 23699, 34637, 38283, 71097, 103911, 114849, 165893, 213291, 242459, 311733, 450281, 497679, 727377, 1350843, 1493037, 2182131, 3151967, 4052529, 9455901, 28367703]

約数ペア:

[(1, 28367703), (3, 9455901), (7, 4052529), (9, 3151967), (13, 2182131), (19, 1493037), (21, 1350843), (39, 727377), (57, 497679), (63, 450281), (91, 311733), (117, 242459), (133, 213291), (171, 165893), (247, 114849), (273, 103911), (399, 71097), (741, 38283), (819, 34637), (1197, 23699), (1729, 16407), (1823, 15561), (2223, 12761), (5187, 5469)]