18773757

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 28028000

約数和(自身を除く): 9254243

約数列:

[1, 3, 9, 43, 129, 139, 349, 387, 417, 1047, 1251, 3141, 5977, 15007, 17931, 45021, 48511, 53793, 135063, 145533, 436599, 2085973, 6257919, 18773757]

約数ペア:

[(1, 18773757), (3, 6257919), (9, 2085973), (43, 436599), (129, 145533), (139, 135063), (349, 53793), (387, 48511), (417, 45021), (1047, 17931), (1251, 15007), (3141, 5977)]