20683516

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 22781444

約数列:

[1, 2, 4, 7, 14, 28, 41, 43, 82, 86, 164, 172, 287, 301, 419, 574, 602, 838, 1148, 1204, 1676, 1763, 2933, 3526, 5866, 7052, 11732, 12341, 17179, 18017, 24682, 34358, 36034, 49364, 68716, 72068, 120253, 126119, 240506, 252238, 481012, 504476, 738697, 1477394, 2954788, 5170879, 10341758, 20683516]

約数ペア:

[(1, 20683516), (2, 10341758), (4, 5170879), (7, 2954788), (14, 1477394), (28, 738697), (41, 504476), (43, 481012), (82, 252238), (86, 240506), (164, 126119), (172, 120253), (287, 72068), (301, 68716), (419, 49364), (574, 36034), (602, 34358), (838, 24682), (1148, 18017), (1204, 17179), (1676, 12341), (1763, 11732), (2933, 7052), (3526, 5866)]