18921843

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{2957}}^1$

素因数の和:3048

約数の個数: 20

約数和(自身を含む): 28633440

約数和(自身を除く): 9711597

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 2957, 6399, 8871, 26613, 79839, 233603, 239517, 700809, 2102427, 6307281, 18921843]

約数ペア:

[(1, 18921843), (3, 6307281), (9, 2102427), (27, 700809), (79, 239517), (81, 233603), (237, 79839), (711, 26613), (2133, 8871), (2957, 6399)]