21565258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{75403}}^1$

素因数の和:75429

約数の個数: 16

約数和(自身を含む): 38003616

約数和(自身を除く): 16438358

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 75403, 150806, 829433, 980239, 1658866, 1960478, 10782629, 21565258]

約数ペア:

[(1, 21565258), (2, 10782629), (11, 1960478), (13, 1658866), (22, 980239), (26, 829433), (143, 150806), (286, 75403)]