21564242

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:482

約数の個数: 32

約数和(自身を含む): 38282112

約数和(自身を除く): 16717870

約数列:

[1, 2, 7, 14, 43, 86, 113, 226, 301, 317, 602, 634, 791, 1582, 2219, 4438, 4859, 9718, 13631, 27262, 34013, 35821, 68026, 71642, 95417, 190834, 250747, 501494, 1540303, 3080606, 10782121, 21564242]

約数ペア:

[(1, 21564242), (2, 10782121), (7, 3080606), (14, 1540303), (43, 501494), (86, 250747), (113, 190834), (226, 95417), (301, 71642), (317, 68026), (602, 35821), (634, 34013), (791, 27262), (1582, 13631), (2219, 9718), (4438, 4859)]