208161753

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4127}}^1$

素因数の和:4213

約数の個数: 32

約数和(自身を含む): 313860096

約数和(自身を除く): 105698343

約数列:

[1, 3, 17, 23, 43, 51, 69, 129, 391, 731, 989, 1173, 2193, 2967, 4127, 12381, 16813, 50439, 70159, 94921, 177461, 210477, 284763, 532383, 1613657, 3016837, 4081603, 4840971, 9050511, 12244809, 69387251, 208161753]

約数ペア:

[(1, 208161753), (3, 69387251), (17, 12244809), (23, 9050511), (43, 4840971), (51, 4081603), (69, 3016837), (129, 1613657), (391, 532383), (731, 284763), (989, 210477), (1173, 177461), (2193, 94921), (2967, 70159), (4127, 50439), (12381, 16813)]