20618654

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2113}}^1$

素因数の和:2180

約数の個数: 32

約数和(自身を含む): 38356416

約数和(自身を除く): 17737762

約数列:

[1, 2, 7, 14, 17, 34, 41, 82, 119, 238, 287, 574, 697, 1394, 2113, 4226, 4879, 9758, 14791, 29582, 35921, 71842, 86633, 173266, 251447, 502894, 606431, 1212862, 1472761, 2945522, 10309327, 20618654]

約数ペア:

[(1, 20618654), (2, 10309327), (7, 2945522), (14, 1472761), (17, 1212862), (34, 606431), (41, 502894), (82, 251447), (119, 173266), (238, 86633), (287, 71842), (574, 35921), (697, 29582), (1394, 14791), (2113, 9758), (4226, 4879)]