211319979

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{18749}}^1$

素因数の和:18799

約数の個数: 24

約数和(自身を含む): 322350000

約数和(自身を除く): 111030021

約数列:

[1, 3, 13, 17, 39, 51, 221, 289, 663, 867, 3757, 11271, 18749, 56247, 243737, 318733, 731211, 956199, 4143529, 5418461, 12430587, 16255383, 70439993, 211319979]

約数ペア:

[(1, 211319979), (3, 70439993), (13, 16255383), (17, 12430587), (39, 5418461), (51, 4143529), (221, 956199), (289, 731211), (663, 318733), (867, 243737), (3757, 56247), (11271, 18749)]