15990947

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1249}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 19200000

約数和(自身を除く): 3209053

約数列:

[1, 7, 31, 59, 217, 413, 1249, 1829, 8743, 12803, 38719, 73691, 271033, 515837, 2284421, 15990947]

約数ペア:

[(1, 15990947), (7, 2284421), (31, 515837), (59, 271033), (217, 73691), (413, 38719), (1249, 12803), (1829, 8743)]