20621668

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{457}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 37510200

約数和(自身を除く): 16888532

約数列:

[1, 2, 4, 29, 58, 116, 389, 457, 778, 914, 1556, 1828, 11281, 13253, 22562, 26506, 45124, 53012, 177773, 355546, 711092, 5155417, 10310834, 20621668]

約数ペア:

[(1, 20621668), (2, 10310834), (4, 5155417), (29, 711092), (58, 355546), (116, 177773), (389, 53012), (457, 45124), (778, 26506), (914, 22562), (1556, 13253), (1828, 11281)]