20753229

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12424371

約数列:

[1, 3, 7, 21, 31, 71, 93, 213, 217, 449, 497, 651, 1347, 1491, 2201, 3143, 6603, 9429, 13919, 15407, 31879, 41757, 46221, 95637, 97433, 223153, 292299, 669459, 988249, 2964747, 6917743, 20753229]

約数ペア:

[(1, 20753229), (3, 6917743), (7, 2964747), (21, 988249), (31, 669459), (71, 292299), (93, 223153), (213, 97433), (217, 95637), (449, 46221), (497, 41757), (651, 31879), (1347, 15407), (1491, 13919), (2201, 9429), (3143, 6603)]