20320677

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 33611760

約数和(自身を除く): 13291083

約数列:

[1, 3, 9, 13, 29, 39, 53, 87, 113, 117, 159, 261, 339, 377, 477, 689, 1017, 1131, 1469, 1537, 2067, 3277, 3393, 4407, 4611, 5989, 6201, 9831, 13221, 13833, 17967, 19981, 29493, 42601, 53901, 59943, 77857, 127803, 173681, 179829, 233571, 383409, 521043, 700713, 1563129, 2257853, 6773559, 20320677]

約数ペア:

[(1, 20320677), (3, 6773559), (9, 2257853), (13, 1563129), (29, 700713), (39, 521043), (53, 383409), (87, 233571), (113, 179829), (117, 173681), (159, 127803), (261, 77857), (339, 59943), (377, 53901), (477, 42601), (689, 29493), (1017, 19981), (1131, 17967), (1469, 13833), (1537, 13221), (2067, 9831), (3277, 6201), (3393, 5989), (4407, 4611)]