20477391

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 31635456

約数和(自身を除く): 11158065

約数列:

[1, 3, 11, 31, 33, 37, 93, 111, 341, 407, 541, 1023, 1147, 1221, 1623, 3441, 5951, 12617, 16771, 17853, 20017, 37851, 50313, 60051, 184481, 220187, 553443, 620527, 660561, 1861581, 6825797, 20477391]

約数ペア:

[(1, 20477391), (3, 6825797), (11, 1861581), (31, 660561), (33, 620527), (37, 553443), (93, 220187), (111, 184481), (341, 60051), (407, 50313), (541, 37851), (1023, 20017), (1147, 17853), (1221, 16771), (1623, 12617), (3441, 5951)]