8391681

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:714

約数の個数: 20

約数和(自身を含む): 12620784

約数和(自身を除く): 4229103

約数列:

[1, 3, 9, 27, 81, 211, 491, 633, 1473, 1899, 4419, 5697, 13257, 17091, 39771, 103601, 310803, 932409, 2797227, 8391681]

約数ペア:

[(1, 8391681), (3, 2797227), (9, 932409), (27, 310803), (81, 103601), (211, 39771), (491, 17091), (633, 13257), (1473, 5697), (1899, 4419)]