2839941

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 48

約数和(自身を含む): 4892160

約数和(自身を除く): 2052219

約数列:

[1, 3, 9, 13, 27, 29, 31, 39, 81, 87, 93, 117, 243, 261, 279, 351, 377, 403, 783, 837, 899, 1053, 1131, 1209, 2349, 2511, 2697, 3159, 3393, 3627, 7047, 7533, 8091, 10179, 10881, 11687, 24273, 30537, 32643, 35061, 72819, 91611, 97929, 105183, 218457, 315549, 946647, 2839941]

約数ペア:

[(1, 2839941), (3, 946647), (9, 315549), (13, 218457), (27, 105183), (29, 97929), (31, 91611), (39, 72819), (81, 35061), (87, 32643), (93, 30537), (117, 24273), (243, 11687), (261, 10881), (279, 10179), (351, 8091), (377, 7533), (403, 7047), (783, 3627), (837, 3393), (899, 3159), (1053, 2697), (1131, 2511), (1209, 2349)]