20538914877

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{5743}}^1$

素因数の和:6231

約数の個数: 64

約数和(自身を含む): 34276515840

約数和(自身を除く): 13737600963

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 443, 621, 897, 1329, 2691, 3987, 5743, 5759, 8073, 10189, 11961, 17229, 17277, 30567, 51687, 51831, 74659, 91701, 132089, 132457, 155061, 155493, 223977, 275103, 396267, 397371, 671931, 1188801, 1192113, 1717157, 2015793, 2544149, 3566403, 3576339, 5151471, 7632447, 15454413, 22897341, 33073937, 46363239, 58515427, 68692023, 99221811, 175546281, 297665433, 526638843, 760700551, 892996299, 1579916529, 2282101653, 6846304959, 20538914877]

約数ペア:

[(1, 20538914877), (3, 6846304959), (9, 2282101653), (13, 1579916529), (23, 892996299), (27, 760700551), (39, 526638843), (69, 297665433), (117, 175546281), (207, 99221811), (299, 68692023), (351, 58515427), (443, 46363239), (621, 33073937), (897, 22897341), (1329, 15454413), (2691, 7632447), (3987, 5151471), (5743, 3576339), (5759, 3566403), (8073, 2544149), (10189, 2015793), (11961, 1717157), (17229, 1192113), (17277, 1188801), (30567, 671931), (51687, 397371), (51831, 396267), (74659, 275103), (91701, 223977), (132089, 155493), (132457, 155061)]