19807977

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{30427}}^1$

素因数の和:30468

約数の個数: 16

約数和(自身を含む): 31158272

約数和(自身を除く): 11350295

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 30427, 91281, 212989, 638967, 943237, 2829711, 6602659, 19807977]

約数ペア:

[(1, 19807977), (3, 6602659), (7, 2829711), (21, 943237), (31, 638967), (93, 212989), (217, 91281), (651, 30427)]