20211897475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{954517}}^1$

素因数の和:954556

約数の個数: 36

約数和(自身を含む): 31483821712

約数和(自身を除く): 11271924237

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 847, 1925, 3025, 4235, 21175, 954517, 4772585, 6681619, 10499687, 23862925, 33408095, 52498435, 73497809, 115496557, 167040475, 262492175, 367489045, 577482785, 808475899, 1837445225, 2887413925, 4042379495, 20211897475]

約数ペア:

[(1, 20211897475), (5, 4042379495), (7, 2887413925), (11, 1837445225), (25, 808475899), (35, 577482785), (55, 367489045), (77, 262492175), (121, 167040475), (175, 115496557), (275, 73497809), (385, 52498435), (605, 33408095), (847, 23862925), (1925, 10499687), (3025, 6681619), (4235, 4772585), (21175, 954517)]