21686445

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 41401152

約数和(自身を除く): 19714707

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 193, 227, 495, 579, 681, 965, 1135, 1737, 2043, 2123, 2497, 2895, 3405, 6369, 7491, 8685, 10215, 10615, 12485, 19107, 22473, 31845, 37455, 43811, 95535, 112365, 131433, 219055, 394299, 481921, 657165, 1445763, 1971495, 2409605, 4337289, 7228815, 21686445]

約数ペア:

[(1, 21686445), (3, 7228815), (5, 4337289), (9, 2409605), (11, 1971495), (15, 1445763), (33, 657165), (45, 481921), (55, 394299), (99, 219055), (165, 131433), (193, 112365), (227, 95535), (495, 43811), (579, 37455), (681, 31845), (965, 22473), (1135, 19107), (1737, 12485), (2043, 10615), (2123, 10215), (2497, 8685), (2895, 7491), (3405, 6369)]