21406842

素因数分解:

$2^1\times 3^5\times {\mathrm{17}}^1\times {\mathrm{2591}}^1$

素因数の和:2625

約数の個数: 48

約数和(自身を含む): 50948352

約数和(自身を除く): 29541510

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 243, 306, 459, 486, 918, 1377, 2591, 2754, 4131, 5182, 7773, 8262, 15546, 23319, 44047, 46638, 69957, 88094, 132141, 139914, 209871, 264282, 396423, 419742, 629613, 792846, 1189269, 1259226, 2378538, 3567807, 7135614, 10703421, 21406842]

約数ペア:

[(1, 21406842), (2, 10703421), (3, 7135614), (6, 3567807), (9, 2378538), (17, 1259226), (18, 1189269), (27, 792846), (34, 629613), (51, 419742), (54, 396423), (81, 264282), (102, 209871), (153, 139914), (162, 132141), (243, 88094), (306, 69957), (459, 46638), (486, 44047), (918, 23319), (1377, 15546), (2591, 8262), (2754, 7773), (4131, 5182)]