28394577

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:750

約数の個数: 32

約数和(自身を含む): 44274560

約数和(自身を除く): 15879983

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 333, 387, 661, 999, 1161, 1591, 1983, 4773, 5949, 14319, 17847, 24457, 28423, 42957, 73371, 85269, 220113, 255807, 660339, 767421, 1051651, 3154953, 9464859, 28394577]

約数ペア:

[(1, 28394577), (3, 9464859), (9, 3154953), (27, 1051651), (37, 767421), (43, 660339), (111, 255807), (129, 220113), (333, 85269), (387, 73371), (661, 42957), (999, 28423), (1161, 24457), (1591, 17847), (1983, 14319), (4773, 5949)]