20487516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{14347}}^1$

素因数の和:14378

約数の個数: 48

約数和(自身を含む): 57851136

約数和(自身を除く): 37363620

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 1428, 14347, 28694, 43041, 57388, 86082, 100429, 172164, 200858, 243899, 301287, 401716, 487798, 602574, 731697, 975596, 1205148, 1463394, 1707293, 2926788, 3414586, 5121879, 6829172, 10243758, 20487516]

約数ペア:

[(1, 20487516), (2, 10243758), (3, 6829172), (4, 5121879), (6, 3414586), (7, 2926788), (12, 1707293), (14, 1463394), (17, 1205148), (21, 975596), (28, 731697), (34, 602574), (42, 487798), (51, 401716), (68, 301287), (84, 243899), (102, 200858), (119, 172164), (204, 100429), (238, 86082), (357, 57388), (476, 43041), (714, 28694), (1428, 14347)]