397777219

素因数分解:

$7^1\times {\mathrm{43}}^2\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 472916832

約数和(自身を除く): 75139613

約数列:

[1, 7, 43, 73, 301, 421, 511, 1849, 2947, 3139, 12943, 18103, 21973, 30733, 126721, 134977, 215131, 778429, 944839, 1321519, 5449003, 9250633, 56825317, 397777219]

約数ペア:

[(1, 397777219), (7, 56825317), (43, 9250633), (73, 5449003), (301, 1321519), (421, 944839), (511, 778429), (1849, 215131), (2947, 134977), (3139, 126721), (12943, 30733), (18103, 21973)]