21000643236

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13566307}}^1$

素因数の和:13566360

約数の個数: 36

約数和(自身を含む): 54319497232

約数和(自身を除く): 33318853996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13566307, 27132614, 40698921, 54265228, 81397842, 122096763, 162795684, 244193526, 488387052, 583351201, 1166702402, 1750053603, 2333404804, 3500107206, 5250160809, 7000214412, 10500321618, 21000643236]

約数ペア:

[(1, 21000643236), (2, 10500321618), (3, 7000214412), (4, 5250160809), (6, 3500107206), (9, 2333404804), (12, 1750053603), (18, 1166702402), (36, 583351201), (43, 488387052), (86, 244193526), (129, 162795684), (172, 122096763), (258, 81397842), (387, 54265228), (516, 40698921), (774, 27132614), (1548, 13566307)]