20699945

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{11159}}^1$

素因数の和:11224

約数の個数: 16

約数和(自身を含む): 28926720

約数和(自身を除く): 8226775

約数列:

[1, 5, 7, 35, 53, 265, 371, 1855, 11159, 55795, 78113, 390565, 591427, 2957135, 4139989, 20699945]

約数ペア:

[(1, 20699945), (5, 4139989), (7, 2957135), (35, 591427), (53, 390565), (265, 78113), (371, 55795), (1855, 11159)]