18577917

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{1087}}^1$

素因数の和:1310

約数の個数: 20

約数和(自身を含む): 27909376

約数和(自身を除く): 9331459

約数列:

[1, 3, 9, 27, 81, 211, 633, 1087, 1899, 3261, 5697, 9783, 17091, 29349, 88047, 229357, 688071, 2064213, 6192639, 18577917]

約数ペア:

[(1, 18577917), (3, 6192639), (9, 2064213), (27, 688071), (81, 229357), (211, 88047), (633, 29349), (1087, 17091), (1899, 9783), (3261, 5697)]