20164221999

素因数分解:

$3^3\times {\mathrm{2081}}^1\times {\mathrm{358877}}^1$

素因数の和:360967

約数の個数: 16

約数和(自身を含む): 29887359840

約数和(自身を除く): 9723137841

約数列:

[1, 3, 9, 27, 2081, 6243, 18729, 56187, 358877, 1076631, 3229893, 9689679, 746823037, 2240469111, 6721407333, 20164221999]

約数ペア:

[(1, 20164221999), (3, 6721407333), (9, 2240469111), (27, 746823037), (2081, 9689679), (6243, 3229893), (18729, 1076631), (56187, 358877)]