21395478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{274301}}^1$

素因数の和:274319

約数の個数: 16

約数和(自身を含む): 46082736

約数和(自身を除く): 24687258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 274301, 548602, 822903, 1645806, 3565913, 7131826, 10697739, 21395478]

約数ペア:

[(1, 21395478), (2, 10697739), (3, 7131826), (6, 3565913), (13, 1645806), (26, 822903), (39, 548602), (78, 274301)]