20097915

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{727}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 34245120

約数和(自身を除く): 14147205

約数列:

[1, 3, 5, 15, 19, 57, 95, 97, 285, 291, 485, 727, 1455, 1843, 2181, 3635, 5529, 9215, 10905, 13813, 27645, 41439, 69065, 70519, 207195, 211557, 352595, 1057785, 1339861, 4019583, 6699305, 20097915]

約数ペア:

[(1, 20097915), (3, 6699305), (5, 4019583), (15, 1339861), (19, 1057785), (57, 352595), (95, 211557), (97, 207195), (285, 70519), (291, 69065), (485, 41439), (727, 27645), (1455, 13813), (1843, 10905), (2181, 9215), (3635, 5529)]