209976921

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{100999}}^1$

素因数の和:101026

約数の個数: 32

約数和(自身を含む): 387840000

約数和(自身を除く): 177863079

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 100999, 302997, 706993, 908991, 1110989, 2120979, 2726973, 3332967, 6362937, 7776923, 9998901, 19088811, 23330769, 29996703, 69992307, 209976921]

約数ペア:

[(1, 209976921), (3, 69992307), (7, 29996703), (9, 23330769), (11, 19088811), (21, 9998901), (27, 7776923), (33, 6362937), (63, 3332967), (77, 2726973), (99, 2120979), (189, 1110989), (231, 908991), (297, 706993), (693, 302997), (2079, 100999)]