19601765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 26459136

約数和(自身を除く): 6857371

約数列:

[1, 5, 17, 31, 43, 85, 155, 173, 215, 527, 731, 865, 1333, 2635, 2941, 3655, 5363, 6665, 7439, 14705, 22661, 26815, 37195, 91171, 113305, 126463, 230609, 455855, 632315, 1153045, 3920353, 19601765]

約数ペア:

[(1, 19601765), (5, 3920353), (17, 1153045), (31, 632315), (43, 455855), (85, 230609), (155, 126463), (173, 113305), (215, 91171), (527, 37195), (731, 26815), (865, 22661), (1333, 14705), (2635, 7439), (2941, 6665), (3655, 5363)]