211908095

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{27901}}^1$

素因数の和:27951

約数の個数: 24

約数和(自身を含む): 305359488

約数和(自身を除く): 93451393

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 7595, 27901, 139505, 195307, 864931, 976535, 1367149, 4324655, 6054517, 6835745, 30272585, 42381619, 211908095]

約数ペア:

[(1, 211908095), (5, 42381619), (7, 30272585), (31, 6835745), (35, 6054517), (49, 4324655), (155, 1367149), (217, 976535), (245, 864931), (1085, 195307), (1519, 139505), (7595, 27901)]