642411

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:133

約数の個数: 40

約数和(自身を含む): 1208064

約数和(自身を除く): 565653

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 103, 189, 231, 297, 309, 567, 693, 721, 891, 927, 1133, 2079, 2163, 2781, 3399, 6237, 6489, 7931, 8343, 10197, 19467, 23793, 30591, 58401, 71379, 91773, 214137, 642411]

約数ペア:

[(1, 642411), (3, 214137), (7, 91773), (9, 71379), (11, 58401), (21, 30591), (27, 23793), (33, 19467), (63, 10197), (77, 8343), (81, 7931), (99, 6489), (103, 6237), (189, 3399), (231, 2781), (297, 2163), (309, 2079), (567, 1133), (693, 927), (721, 891)]