204156981

素因数分解:

$3^2\times 7^2\times {\mathrm{457}}^1\times {\mathrm{1013}}^1$

素因数の和:1490

約数の個数: 36

約数和(自身を含む): 344129292

約数和(自身を除く): 139972311

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 457, 1013, 1371, 3039, 3199, 4113, 7091, 9117, 9597, 21273, 22393, 28791, 49637, 63819, 67179, 148911, 201537, 446733, 462941, 1388823, 3240587, 4166469, 9721761, 22684109, 29165283, 68052327, 204156981]

約数ペア:

[(1, 204156981), (3, 68052327), (7, 29165283), (9, 22684109), (21, 9721761), (49, 4166469), (63, 3240587), (147, 1388823), (441, 462941), (457, 446733), (1013, 201537), (1371, 148911), (3039, 67179), (3199, 63819), (4113, 49637), (7091, 28791), (9117, 22393), (9597, 21273)]