19785801

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 31829760

約数和(自身を除く): 12043959

約数列:

[1, 3, 7, 21, 29, 53, 87, 159, 203, 371, 609, 613, 1113, 1537, 1839, 4291, 4611, 10759, 12873, 17777, 32277, 32489, 53331, 97467, 124439, 227423, 373317, 682269, 942181, 2826543, 6595267, 19785801]

約数ペア:

[(1, 19785801), (3, 6595267), (7, 2826543), (21, 942181), (29, 682269), (53, 373317), (87, 227423), (159, 124439), (203, 97467), (371, 53331), (609, 32489), (613, 32277), (1113, 17777), (1537, 12873), (1839, 10759), (4291, 4611)]