20121691383

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{33331}}^1$

素因数の和:33629

約数の個数: 40

約数和(自身を含む): 31216751280

約数和(自身を除く): 11095059897

約数列:

[1, 3, 9, 27, 29, 81, 87, 257, 261, 771, 783, 2313, 2349, 6939, 7453, 20817, 22359, 33331, 67077, 99993, 201231, 299979, 603693, 899937, 966599, 2699811, 2899797, 8566067, 8699391, 25698201, 26098173, 77094603, 78294519, 231283809, 248415943, 693851427, 745247829, 2235743487, 6707230461, 20121691383]

約数ペア:

[(1, 20121691383), (3, 6707230461), (9, 2235743487), (27, 745247829), (29, 693851427), (81, 248415943), (87, 231283809), (257, 78294519), (261, 77094603), (771, 26098173), (783, 25698201), (2313, 8699391), (2349, 8566067), (6939, 2899797), (7453, 2699811), (20817, 966599), (22359, 899937), (33331, 603693), (67077, 299979), (99993, 201231)]