19774587

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 33439392

約数和(自身を除く): 13664805

約数列:

[1, 3, 7, 17, 21, 41, 49, 51, 119, 123, 147, 193, 287, 357, 579, 697, 833, 861, 1351, 2009, 2091, 2499, 3281, 4053, 4879, 6027, 7913, 9457, 9843, 14637, 22967, 23739, 28371, 34153, 55391, 68901, 102459, 134521, 160769, 166173, 387737, 403563, 482307, 941647, 1163211, 2824941, 6591529, 19774587]

約数ペア:

[(1, 19774587), (3, 6591529), (7, 2824941), (17, 1163211), (21, 941647), (41, 482307), (49, 403563), (51, 387737), (119, 166173), (123, 160769), (147, 134521), (193, 102459), (287, 68901), (357, 55391), (579, 34153), (697, 28371), (833, 23739), (861, 22967), (1351, 14637), (2009, 9843), (2091, 9457), (2499, 7913), (3281, 6027), (4053, 4879)]