213955105

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{24749}}^1$

素因数の和:24793

約数の個数: 32

約数和(自身を含む): 332640000

約数和(自身を除く): 118684895

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 8645, 24749, 123745, 173243, 321737, 470231, 866215, 1608685, 2252159, 2351155, 3291617, 6113003, 11260795, 16458085, 30565015, 42791021, 213955105]

約数ペア:

[(1, 213955105), (5, 42791021), (7, 30565015), (13, 16458085), (19, 11260795), (35, 6113003), (65, 3291617), (91, 2351155), (95, 2252159), (133, 1608685), (247, 866215), (455, 470231), (665, 321737), (1235, 173243), (1729, 123745), (8645, 24749)]