1947771

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 3294720

約数和(自身を除く): 1346949

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 719, 903, 2157, 2709, 5033, 6471, 15099, 30917, 45297, 92751, 216419, 278253, 649257, 1947771]

約数ペア:

[(1, 1947771), (3, 649257), (7, 278253), (9, 216419), (21, 92751), (43, 45297), (63, 30917), (129, 15099), (301, 6471), (387, 5033), (719, 2709), (903, 2157)]