20120373

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:479

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 18586827

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 63, 91, 117, 133, 171, 189, 247, 273, 351, 399, 431, 513, 741, 819, 1197, 1293, 1729, 2223, 2457, 3017, 3591, 3879, 5187, 5603, 6669, 8189, 9051, 11637, 15561, 16809, 24567, 27153, 39221, 46683, 50427, 57323, 73701, 81459, 106457, 117663, 151281, 171969, 221103, 319371, 352989, 515907, 745199, 958113, 1058967, 1547721, 2235597, 2874339, 6706791, 20120373]

約数ペア:

[(1, 20120373), (3, 6706791), (7, 2874339), (9, 2235597), (13, 1547721), (19, 1058967), (21, 958113), (27, 745199), (39, 515907), (57, 352989), (63, 319371), (91, 221103), (117, 171969), (133, 151281), (171, 117663), (189, 106457), (247, 81459), (273, 73701), (351, 57323), (399, 50427), (431, 46683), (513, 39221), (741, 27153), (819, 24567), (1197, 16809), (1293, 15561), (1729, 11637), (2223, 9051), (2457, 8189), (3017, 6669), (3591, 5603), (3879, 5187)]