18995901

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1301}}^1$

素因数の和:1492

約数の個数: 16

約数和(自身を含む): 26331648

約数和(自身を除く): 7335747

約数列:

[1, 3, 31, 93, 157, 471, 1301, 3903, 4867, 14601, 40331, 120993, 204257, 612771, 6331967, 18995901]

約数ペア:

[(1, 18995901), (3, 6331967), (31, 612771), (93, 204257), (157, 120993), (471, 40331), (1301, 14601), (3903, 4867)]