21209595

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{673}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 37269504

約数和(自身を除く): 16059909

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 191, 573, 673, 955, 2019, 2101, 2865, 3365, 6303, 7403, 10095, 10505, 22209, 31515, 37015, 111045, 128543, 385629, 642715, 1413973, 1928145, 4241919, 7069865, 21209595]

約数ペア:

[(1, 21209595), (3, 7069865), (5, 4241919), (11, 1928145), (15, 1413973), (33, 642715), (55, 385629), (165, 128543), (191, 111045), (573, 37015), (673, 31515), (955, 22209), (2019, 10505), (2101, 10095), (2865, 7403), (3365, 6303)]