21219714

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{28753}}^1$

素因数の和:28802

約数の個数: 24

約数和(自身を含む): 47099052

約数和(自身を除く): 25879338

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 28753, 57506, 86259, 172518, 258777, 517554, 1178873, 2357746, 3536619, 7073238, 10609857, 21219714]

約数ペア:

[(1, 21219714), (2, 10609857), (3, 7073238), (6, 3536619), (9, 2357746), (18, 1178873), (41, 517554), (82, 258777), (123, 172518), (246, 86259), (369, 57506), (738, 28753)]