21856054

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 37509120

約数和(自身を除く): 15653066

約数列:

[1, 2, 11, 22, 31, 62, 73, 146, 341, 439, 682, 803, 878, 1606, 2263, 4526, 4829, 9658, 13609, 24893, 27218, 32047, 49786, 64094, 149699, 299398, 352517, 705034, 993457, 1986914, 10928027, 21856054]

約数ペア:

[(1, 21856054), (2, 10928027), (11, 1986914), (22, 993457), (31, 705034), (62, 352517), (73, 299398), (146, 149699), (341, 64094), (439, 49786), (682, 32047), (803, 27218), (878, 24893), (1606, 13609), (2263, 9658), (4526, 4829)]