19954779

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{5749}}^1$

素因数の和:5854

約数の個数: 16

約数和(自身を含む): 28980000

約数和(自身を除く): 9025221

約数列:

[1, 3, 13, 39, 89, 267, 1157, 3471, 5749, 17247, 74737, 224211, 511661, 1534983, 6651593, 19954779]

約数ペア:

[(1, 19954779), (3, 6651593), (13, 1534983), (39, 511661), (89, 224211), (267, 74737), (1157, 17247), (3471, 5749)]