19894609

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4261}}^1$

素因数の和:4320

約数の個数: 16

約数和(自身を含む): 24549120

約数和(自身を除く): 4654511

約数列:

[1, 7, 23, 29, 161, 203, 667, 4261, 4669, 29827, 98003, 123569, 686021, 864983, 2842087, 19894609]

約数ペア:

[(1, 19894609), (7, 2842087), (23, 864983), (29, 686021), (161, 123569), (203, 98003), (667, 29827), (4261, 4669)]