21567790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1187}}^1$

素因数の和:1296

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 19489490

約数列:

[1, 2, 5, 10, 23, 46, 79, 115, 158, 230, 395, 790, 1187, 1817, 2374, 3634, 5935, 9085, 11870, 18170, 27301, 54602, 93773, 136505, 187546, 273010, 468865, 937730, 2156779, 4313558, 10783895, 21567790]

約数ペア:

[(1, 21567790), (2, 10783895), (5, 4313558), (10, 2156779), (23, 937730), (46, 468865), (79, 273010), (115, 187546), (158, 136505), (230, 93773), (395, 54602), (790, 27301), (1187, 18170), (1817, 11870), (2374, 9085), (3634, 5935)]