20213085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2613

約数の個数: 32

約数和(自身を含む): 35361792

約数和(自身を除く): 15148707

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2557, 2635, 7671, 7905, 12785, 38355, 43469, 79267, 130407, 217345, 237801, 396335, 652035, 1189005, 1347539, 4042617, 6737695, 20213085]

約数ペア:

[(1, 20213085), (3, 6737695), (5, 4042617), (15, 1347539), (17, 1189005), (31, 652035), (51, 396335), (85, 237801), (93, 217345), (155, 130407), (255, 79267), (465, 43469), (527, 38355), (1581, 12785), (2557, 7905), (2635, 7671)]