201220431

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 288288000

約数和(自身を除く): 87067569

約数列:

[1, 3, 19, 57, 109, 139, 233, 327, 417, 699, 2071, 2641, 4427, 6213, 7923, 13281, 15151, 25397, 32387, 45453, 76191, 97161, 287869, 482543, 615353, 863607, 1447629, 1846059, 3530183, 10590549, 67073477, 201220431]

約数ペア:

[(1, 201220431), (3, 67073477), (19, 10590549), (57, 3530183), (109, 1846059), (139, 1447629), (233, 863607), (327, 615353), (417, 482543), (699, 287869), (2071, 97161), (2641, 76191), (4427, 45453), (6213, 32387), (7923, 25397), (13281, 15151)]