21398922

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{19489}}^1$

素因数の和:19558

約数の個数: 24

約数和(自身を含む): 47126820

約数和(自身を除く): 25727898

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 19489, 38978, 58467, 116934, 175401, 350802, 1188829, 2377658, 3566487, 7132974, 10699461, 21398922]

約数ペア:

[(1, 21398922), (2, 10699461), (3, 7132974), (6, 3566487), (9, 2377658), (18, 1188829), (61, 350802), (122, 175401), (183, 116934), (366, 58467), (549, 38978), (1098, 19489)]