20153214921

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{8968943}}^1$

素因数の和:8969060

約数の個数: 16

約数和(自身を含む): 30996670464

約数和(自身を除く): 10843455543

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 8968943, 26906829, 62782601, 188347803, 959676901, 2879030703, 6717738307, 20153214921]

約数ペア:

[(1, 20153214921), (3, 6717738307), (7, 2879030703), (21, 959676901), (107, 188347803), (321, 62782601), (749, 26906829), (2247, 8968943)]