21167882945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{90197}}^1$

素因数の和:90481

約数の個数: 32

約数和(自身を含む): 29457945216

約数和(自身を除く): 8290062271

約数列:

[1, 5, 11, 17, 55, 85, 187, 251, 935, 1255, 2761, 4267, 13805, 21335, 46937, 90197, 234685, 450985, 992167, 1533349, 4960835, 7666745, 16866839, 22639447, 84334195, 113197235, 249033917, 384870599, 1245169585, 1924352995, 4233576589, 21167882945]

約数ペア:

[(1, 21167882945), (5, 4233576589), (11, 1924352995), (17, 1245169585), (55, 384870599), (85, 249033917), (187, 113197235), (251, 84334195), (935, 22639447), (1255, 16866839), (2761, 7666745), (4267, 4960835), (13805, 1533349), (21335, 992167), (46937, 450985), (90197, 234685)]