21412892345

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1\times {\mathrm{307}}^1\times {\mathrm{419}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 28123381440

約数和(自身を除く): 6710489095

約数列:

[1, 5, 13, 65, 169, 197, 307, 419, 845, 985, 1535, 2095, 2561, 3991, 5447, 12805, 19955, 27235, 33293, 51883, 60479, 70811, 82543, 128633, 166465, 259415, 302395, 354055, 412715, 643165, 786227, 1073059, 1672229, 3931135, 5365295, 8361145, 10220951, 13949767, 21738977, 25340701, 51104755, 69748835, 108694885, 126703505, 329429113, 1647145565, 4282578469, 21412892345]

約数ペア:

[(1, 21412892345), (5, 4282578469), (13, 1647145565), (65, 329429113), (169, 126703505), (197, 108694885), (307, 69748835), (419, 51104755), (845, 25340701), (985, 21738977), (1535, 13949767), (2095, 10220951), (2561, 8361145), (3991, 5365295), (5447, 3931135), (12805, 1672229), (19955, 1073059), (27235, 786227), (33293, 643165), (51883, 412715), (60479, 354055), (70811, 302395), (82543, 259415), (128633, 166465)]