18629471

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{461}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 22353408

約数和(自身を除く): 3723937

約数列:

[1, 7, 23, 161, 251, 461, 1757, 3227, 5773, 10603, 40411, 74221, 115711, 809977, 2661353, 18629471]

約数ペア:

[(1, 18629471), (7, 2661353), (23, 809977), (161, 115711), (251, 74221), (461, 40411), (1757, 10603), (3227, 5773)]