21394542

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2663}}^1$

素因数の和:2784

約数の個数: 32

約数和(自身を含む): 46545408

約数和(自身を除く): 25150866

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 103, 206, 309, 618, 1339, 2663, 2678, 4017, 5326, 7989, 8034, 15978, 34619, 69238, 103857, 207714, 274289, 548578, 822867, 1645734, 3565757, 7131514, 10697271, 21394542]

約数ペア:

[(1, 21394542), (2, 10697271), (3, 7131514), (6, 3565757), (13, 1645734), (26, 822867), (39, 548578), (78, 274289), (103, 207714), (206, 103857), (309, 69238), (618, 34619), (1339, 15978), (2663, 8034), (2678, 7989), (4017, 5326)]