21589096

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{647}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 20323544

約数列:

[1, 2, 4, 8, 43, 86, 97, 172, 194, 344, 388, 647, 776, 1294, 2588, 4171, 5176, 8342, 16684, 27821, 33368, 55642, 62759, 111284, 125518, 222568, 251036, 502072, 2698637, 5397274, 10794548, 21589096]

約数ペア:

[(1, 21589096), (2, 10794548), (4, 5397274), (8, 2698637), (43, 502072), (86, 251036), (97, 222568), (172, 125518), (194, 111284), (344, 62759), (388, 55642), (647, 33368), (776, 27821), (1294, 16684), (2588, 8342), (4171, 5176)]