20127195

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 38649312

約数和(自身を除く): 18522117

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 73, 99, 165, 219, 365, 495, 557, 657, 803, 1095, 1671, 2409, 2785, 3285, 4015, 5013, 6127, 7227, 8355, 12045, 18381, 25065, 30635, 36135, 40661, 55143, 91905, 121983, 203305, 275715, 365949, 447271, 609915, 1341813, 1829745, 2236355, 4025439, 6709065, 20127195]

約数ペア:

[(1, 20127195), (3, 6709065), (5, 4025439), (9, 2236355), (11, 1829745), (15, 1341813), (33, 609915), (45, 447271), (55, 365949), (73, 275715), (99, 203305), (165, 121983), (219, 91905), (365, 55143), (495, 40661), (557, 36135), (657, 30635), (803, 25065), (1095, 18381), (1671, 12045), (2409, 8355), (2785, 7227), (3285, 6127), (4015, 5013)]