18415117

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 21676032

約数和(自身を除く): 3260915

約数列:

[1, 7, 47, 223, 251, 329, 1561, 1757, 10481, 11797, 55973, 73367, 82579, 391811, 2630731, 18415117]

約数ペア:

[(1, 18415117), (7, 2630731), (47, 391811), (223, 82579), (251, 73367), (329, 55973), (1561, 11797), (1757, 10481)]