19911038

素因数分解:

$2^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{7369}}^1$

素因数の和:7571

約数の個数: 16

約数和(自身を含む): 34314720

約数和(自身を除く): 14403682

約数列:

[1, 2, 7, 14, 193, 386, 1351, 2702, 7369, 14738, 51583, 103166, 1422217, 2844434, 9955519, 19911038]

約数ペア:

[(1, 19911038), (2, 9955519), (7, 2844434), (14, 1422217), (193, 103166), (386, 51583), (1351, 14738), (2702, 7369)]