17817813

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{16921}}^1$

素因数の和:16946

約数の個数: 20

約数和(自身を含む): 28665868

約数和(自身を除く): 10848055

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 16921, 50763, 152289, 219973, 456867, 659919, 1370601, 1979757, 5939271, 17817813]

約数ペア:

[(1, 17817813), (3, 5939271), (9, 1979757), (13, 1370601), (27, 659919), (39, 456867), (81, 219973), (117, 152289), (351, 50763), (1053, 16921)]