20713686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 50526720

約数和(自身を除く): 29813034

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 101, 114, 133, 202, 257, 266, 303, 399, 514, 606, 707, 771, 798, 1414, 1542, 1799, 1919, 2121, 3598, 3838, 4242, 4883, 5397, 5757, 9766, 10794, 11514, 13433, 14649, 25957, 26866, 29298, 34181, 40299, 51914, 68362, 77871, 80598, 102543, 155742, 181699, 205086, 363398, 493183, 545097, 986366, 1090194, 1479549, 2959098, 3452281, 6904562, 10356843, 20713686]

約数ペア:

[(1, 20713686), (2, 10356843), (3, 6904562), (6, 3452281), (7, 2959098), (14, 1479549), (19, 1090194), (21, 986366), (38, 545097), (42, 493183), (57, 363398), (101, 205086), (114, 181699), (133, 155742), (202, 102543), (257, 80598), (266, 77871), (303, 68362), (399, 51914), (514, 40299), (606, 34181), (707, 29298), (771, 26866), (798, 25957), (1414, 14649), (1542, 13433), (1799, 11514), (1919, 10794), (2121, 9766), (3598, 5757), (3838, 5397), (4242, 4883)]