21919485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1951}}^1$

素因数の和:2073

約数の個数: 32

約数和(自身を含む): 40476672

約数和(自身を除く): 18557187

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 107, 321, 535, 749, 1605, 1951, 2247, 3745, 5853, 9755, 11235, 13657, 29265, 40971, 68285, 204855, 208757, 626271, 1043785, 1461299, 3131355, 4383897, 7306495, 21919485]

約数ペア:

[(1, 21919485), (3, 7306495), (5, 4383897), (7, 3131355), (15, 1461299), (21, 1043785), (35, 626271), (105, 208757), (107, 204855), (321, 68285), (535, 40971), (749, 29265), (1605, 13657), (1951, 11235), (2247, 9755), (3745, 5853)]