20508813

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2971}}^1$

素因数の和:3049

約数の個数: 24

約数和(自身を含む): 32454240

約数和(自身を除く): 11945427

約数列:

[1, 3, 9, 13, 39, 59, 117, 177, 531, 767, 2301, 2971, 6903, 8913, 26739, 38623, 115869, 175289, 347607, 525867, 1577601, 2278757, 6836271, 20508813]

約数ペア:

[(1, 20508813), (3, 6836271), (9, 2278757), (13, 1577601), (39, 525867), (59, 347607), (117, 175289), (177, 115869), (531, 38623), (767, 26739), (2301, 8913), (2971, 6903)]