19215427

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4091}}^1$

素因数の和:4170

約数の個数: 16

約数和(自身を含む): 24355584

約数和(自身を除く): 5140157

約数列:

[1, 7, 11, 61, 77, 427, 671, 4091, 4697, 28637, 45001, 249551, 315007, 1746857, 2745061, 19215427]

約数ペア:

[(1, 19215427), (7, 2745061), (11, 1746857), (61, 315007), (77, 249551), (427, 45001), (671, 28637), (4091, 4697)]