51420551

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 65212560

約数和(自身を除く): 13792009

約数列:

[1, 7, 13, 49, 89, 91, 623, 637, 907, 1157, 4361, 6349, 8099, 11791, 44443, 56693, 80723, 82537, 565061, 577759, 1049399, 3955427, 7345793, 51420551]

約数ペア:

[(1, 51420551), (7, 7345793), (13, 3955427), (49, 1049399), (89, 577759), (91, 565061), (623, 82537), (637, 80723), (907, 56693), (1157, 44443), (4361, 11791), (6349, 8099)]