27971629

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 35425280

約数和(自身を除く): 7453651

約数列:

[1, 7, 19, 43, 67, 73, 133, 301, 469, 511, 817, 1273, 1387, 2881, 3139, 4891, 5719, 8911, 9709, 20167, 21973, 34237, 54739, 59641, 92929, 210313, 383173, 417487, 650503, 1472191, 3995947, 27971629]

約数ペア:

[(1, 27971629), (7, 3995947), (19, 1472191), (43, 650503), (67, 417487), (73, 383173), (133, 210313), (301, 92929), (469, 59641), (511, 54739), (817, 34237), (1273, 21973), (1387, 20167), (2881, 9709), (3139, 8911), (4891, 5719)]