21647373

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12377}}^1$

素因数の和:12444

約数の個数: 16

約数和(自身を含む): 32083776

約数和(自身を除く): 10436403

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12377, 37131, 136147, 408441, 655981, 1967943, 7215791, 21647373]

約数ペア:

[(1, 21647373), (3, 7215791), (11, 1967943), (33, 655981), (53, 408441), (159, 136147), (583, 37131), (1749, 12377)]