201528921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{3361}}^1$

素因数の和:3477

約数の個数: 32

約数和(自身を含む): 309841920

約数和(自身を除く): 108312999

約数列:

[1, 3, 11, 23, 33, 69, 79, 237, 253, 759, 869, 1817, 2607, 3361, 5451, 10083, 19987, 36971, 59961, 77303, 110913, 231909, 265519, 796557, 850333, 2550999, 2920709, 6106937, 8762127, 18320811, 67176307, 201528921]

約数ペア:

[(1, 201528921), (3, 67176307), (11, 18320811), (23, 8762127), (33, 6106937), (69, 2920709), (79, 2550999), (237, 850333), (253, 796557), (759, 265519), (869, 231909), (1817, 110913), (2607, 77303), (3361, 59961), (5451, 36971), (10083, 19987)]