20007555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2531}}^1$

素因数の和:2587

約数の個数: 32

約数和(自身を含む): 35002368

約数和(自身を除く): 14994813

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2531, 2635, 7593, 7905, 12655, 37965, 43027, 78461, 129081, 215135, 235383, 392305, 645405, 1176915, 1333837, 4001511, 6669185, 20007555]

約数ペア:

[(1, 20007555), (3, 6669185), (5, 4001511), (15, 1333837), (17, 1176915), (31, 645405), (51, 392305), (85, 235383), (93, 215135), (155, 129081), (255, 78461), (465, 43027), (527, 37965), (1581, 12655), (2531, 7905), (2635, 7593)]