199448921

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 245372160

約数和(自身を除く): 45923239

約数列:

[1, 7, 29, 43, 73, 203, 301, 313, 511, 1247, 2117, 2191, 3139, 8729, 9077, 13459, 14819, 21973, 22849, 63539, 91031, 94213, 159943, 390311, 637217, 662621, 982507, 2732177, 4638347, 6877549, 28492703, 199448921]

約数ペア:

[(1, 199448921), (7, 28492703), (29, 6877549), (43, 4638347), (73, 2732177), (203, 982507), (301, 662621), (313, 637217), (511, 390311), (1247, 159943), (2117, 94213), (2191, 91031), (3139, 63539), (8729, 22849), (9077, 21973), (13459, 14819)]