21640094

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 38438400

約数和(自身を除く): 16798306

約数列:

[1, 2, 7, 14, 43, 86, 103, 206, 301, 349, 602, 698, 721, 1442, 2443, 4429, 4886, 8858, 15007, 30014, 31003, 35947, 62006, 71894, 105049, 210098, 251629, 503258, 1545721, 3091442, 10820047, 21640094]

約数ペア:

[(1, 21640094), (2, 10820047), (7, 3091442), (14, 1545721), (43, 503258), (86, 251629), (103, 210098), (206, 105049), (301, 71894), (349, 62006), (602, 35947), (698, 31003), (721, 30014), (1442, 15007), (2443, 8858), (4429, 4886)]