203421812

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{420293}}^1$

素因数の和:420319

約数の個数: 18

約数和(自身を含む): 391293714

約数和(自身を除く): 187871902

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 420293, 840586, 1681172, 4623223, 9246446, 18492892, 50855453, 101710906, 203421812]

約数ペア:

[(1, 203421812), (2, 101710906), (4, 50855453), (11, 18492892), (22, 9246446), (44, 4623223), (121, 1681172), (242, 840586), (484, 420293)]