213993

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:109

約数の個数: 24

約数和(自身を含む): 349440

約数和(自身を除く): 135447

約数列:

[1, 3, 9, 13, 31, 39, 59, 93, 117, 177, 279, 403, 531, 767, 1209, 1829, 2301, 3627, 5487, 6903, 16461, 23777, 71331, 213993]

約数ペア:

[(1, 213993), (3, 71331), (9, 23777), (13, 16461), (31, 6903), (39, 5487), (59, 3627), (93, 2301), (117, 1829), (177, 1209), (279, 767), (403, 531)]