21269139

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1\times {\mathrm{383}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 28864512

約数和(自身を除く): 7595373

約数列:

[1, 3, 107, 173, 321, 383, 519, 1149, 18511, 40981, 55533, 66259, 122943, 198777, 7089713, 21269139]

約数ペア:

[(1, 21269139), (3, 7089713), (107, 198777), (173, 122943), (321, 66259), (383, 55533), (519, 40981), (1149, 18511)]