20108439

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{971}}^1$

素因数の和:1052

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 12550761

約数列:

[1, 3, 9, 13, 27, 39, 59, 117, 177, 351, 531, 767, 971, 1593, 2301, 2913, 6903, 8739, 12623, 20709, 26217, 37869, 57289, 113607, 171867, 340821, 515601, 744757, 1546803, 2234271, 6702813, 20108439]

約数ペア:

[(1, 20108439), (3, 6702813), (9, 2234271), (13, 1546803), (27, 744757), (39, 515601), (59, 340821), (117, 171867), (177, 113607), (351, 57289), (531, 37869), (767, 26217), (971, 20709), (1593, 12623), (2301, 8739), (2913, 6903)]