18964641

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7079}}^1$

素因数の和:7148

約数の個数: 16

約数和(自身を含む): 27187200

約数和(自身を除く): 8222559

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7079, 21237, 134501, 332713, 403503, 998139, 6321547, 18964641]

約数ペア:

[(1, 18964641), (3, 6321547), (19, 998139), (47, 403503), (57, 332713), (141, 134501), (893, 21237), (2679, 7079)]