208775217

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1\times {\mathrm{1009}}^1$

素因数の和:1245

約数の個数: 32

約数和(自身を含む): 325785600

約数和(自身を除く): 117010383

約数列:

[1, 3, 7, 21, 59, 167, 177, 413, 501, 1009, 1169, 1239, 3027, 3507, 7063, 9853, 21189, 29559, 59531, 68971, 168503, 178593, 206913, 416717, 505509, 1179521, 1250151, 3538563, 9941677, 29825031, 69591739, 208775217]

約数ペア:

[(1, 208775217), (3, 69591739), (7, 29825031), (21, 9941677), (59, 3538563), (167, 1250151), (177, 1179521), (413, 505509), (501, 416717), (1009, 206913), (1169, 178593), (1239, 168503), (3027, 68971), (3507, 59531), (7063, 29559), (9853, 21189)]