21410388

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13831}}^1$

素因数の和:13884

約数の個数: 36

約数和(自身を含む): 55383328

約数和(自身を除く): 33972940

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13831, 27662, 41493, 55324, 82986, 124479, 165972, 248958, 497916, 594733, 1189466, 1784199, 2378932, 3568398, 5352597, 7136796, 10705194, 21410388]

約数ペア:

[(1, 21410388), (2, 10705194), (3, 7136796), (4, 5352597), (6, 3568398), (9, 2378932), (12, 1784199), (18, 1189466), (36, 594733), (43, 497916), (86, 248958), (129, 165972), (172, 124479), (258, 82986), (387, 55324), (516, 41493), (774, 27662), (1548, 13831)]