221350415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{877}}^1$

素因数の和:1259

約数の個数: 32

約数和(自身を含む): 313298496

約数和(自身を除く): 91948081

約数列:

[1, 5, 11, 13, 55, 65, 143, 353, 715, 877, 1765, 3883, 4385, 4589, 9647, 11401, 19415, 22945, 48235, 50479, 57005, 125411, 252395, 309581, 627055, 1547905, 3405391, 4024553, 17026955, 20122765, 44270083, 221350415]

約数ペア:

[(1, 221350415), (5, 44270083), (11, 20122765), (13, 17026955), (55, 4024553), (65, 3405391), (143, 1547905), (353, 627055), (715, 309581), (877, 252395), (1765, 125411), (3883, 57005), (4385, 50479), (4589, 48235), (9647, 22945), (11401, 19415)]