21903178

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{3121}}^1$

素因数の和:3174

約数の個数: 24

約数和(自身を含む): 37370340

約数和(自身を除く): 15467162

約数列:

[1, 2, 11, 22, 29, 58, 121, 242, 319, 638, 3121, 3509, 6242, 7018, 34331, 68662, 90509, 181018, 377641, 755282, 995599, 1991198, 10951589, 21903178]

約数ペア:

[(1, 21903178), (2, 10951589), (11, 1991198), (22, 995599), (29, 755282), (58, 377641), (121, 181018), (242, 90509), (319, 68662), (638, 34331), (3121, 7018), (3509, 6242)]