20930745

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2699}}^1$

素因数の和:2765

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 16394055

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2585, 2699, 7755, 8097, 13495, 29689, 40485, 89067, 126853, 148445, 380559, 445335, 634265, 1395383, 1902795, 4186149, 6976915, 20930745]

約数ペア:

[(1, 20930745), (3, 6976915), (5, 4186149), (11, 1902795), (15, 1395383), (33, 634265), (47, 445335), (55, 380559), (141, 148445), (165, 126853), (235, 89067), (517, 40485), (705, 29689), (1551, 13495), (2585, 8097), (2699, 7755)]