20213268

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^2\times {\mathrm{911}}^1$

素因数の和:1004

約数の個数: 36

約数和(自身を含む): 48339648

約数和(自身を除く): 28126380

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 911, 1822, 1849, 2733, 3644, 3698, 5466, 5547, 7396, 10932, 11094, 22188, 39173, 78346, 117519, 156692, 235038, 470076, 1684439, 3368878, 5053317, 6737756, 10106634, 20213268]

約数ペア:

[(1, 20213268), (2, 10106634), (3, 6737756), (4, 5053317), (6, 3368878), (12, 1684439), (43, 470076), (86, 235038), (129, 156692), (172, 117519), (258, 78346), (516, 39173), (911, 22188), (1822, 11094), (1849, 10932), (2733, 7396), (3644, 5547), (3698, 5466)]