289367721

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{16931}}^1$

素因数の和:17154

約数の個数: 20

約数和(自身を含む): 434339664

約数和(自身を除く): 144971943

約数列:

[1, 3, 9, 27, 81, 211, 633, 1899, 5697, 16931, 17091, 50793, 152379, 457137, 1371411, 3572441, 10717323, 32151969, 96455907, 289367721]

約数ペア:

[(1, 289367721), (3, 96455907), (9, 32151969), (27, 10717323), (81, 3572441), (211, 1371411), (633, 457137), (1899, 152379), (5697, 50793), (16931, 17091)]