21573342

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1307}}^1$

素因数の和:1453

約数の個数: 48

約数和(自身を含む): 53868672

約数和(自身を除く): 32295330

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 131, 262, 393, 786, 917, 1179, 1307, 1834, 2358, 2614, 2751, 3921, 5502, 7842, 8253, 9149, 11763, 16506, 18298, 23526, 27447, 54894, 82341, 164682, 171217, 342434, 513651, 1027302, 1198519, 1540953, 2397038, 3081906, 3595557, 7191114, 10786671, 21573342]

約数ペア:

[(1, 21573342), (2, 10786671), (3, 7191114), (6, 3595557), (7, 3081906), (9, 2397038), (14, 1540953), (18, 1198519), (21, 1027302), (42, 513651), (63, 342434), (126, 171217), (131, 164682), (262, 82341), (393, 54894), (786, 27447), (917, 23526), (1179, 18298), (1307, 16506), (1834, 11763), (2358, 9149), (2614, 8253), (2751, 7842), (3921, 5502)]