19931275

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8761}}^1$

素因数の和:8791

約数の個数: 24

約数和(自身を含む): 30421664

約数和(自身を除く): 10490389

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 8761, 43805, 61327, 113893, 219025, 306635, 569465, 797251, 1533175, 2847325, 3986255, 19931275]

約数ペア:

[(1, 19931275), (5, 3986255), (7, 2847325), (13, 1533175), (25, 797251), (35, 569465), (65, 306635), (91, 219025), (175, 113893), (325, 61327), (455, 43805), (2275, 8761)]