18087219

素因数分解:

$3^6\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:638

約数の個数: 28

約数和(自身を含む): 27797176

約数和(自身を除く): 9709957

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 577, 729, 1161, 1731, 3483, 5193, 10449, 15579, 24811, 31347, 46737, 74433, 140211, 223299, 420633, 669897, 2009691, 6029073, 18087219]

約数ペア:

[(1, 18087219), (3, 6029073), (9, 2009691), (27, 669897), (43, 420633), (81, 223299), (129, 140211), (243, 74433), (387, 46737), (577, 31347), (729, 24811), (1161, 15579), (1731, 10449), (3483, 5193)]