21884525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{233}}^1$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 31177692

約数和(自身を除く): 9293167

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 233, 289, 325, 425, 1105, 1165, 1445, 3029, 3757, 3961, 5525, 5825, 7225, 15145, 18785, 19805, 51493, 67337, 75725, 93925, 99025, 257465, 336685, 875381, 1287325, 1683425, 4376905, 21884525]

約数ペア:

[(1, 21884525), (5, 4376905), (13, 1683425), (17, 1287325), (25, 875381), (65, 336685), (85, 257465), (221, 99025), (233, 93925), (289, 75725), (325, 67337), (425, 51493), (1105, 19805), (1165, 18785), (1445, 15145), (3029, 7225), (3757, 5825), (3961, 5525)]