161521521

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{853}}^1$

素因数の和:1061

約数の個数: 32

約数和(自身を含む): 251854848

約数和(自身を除く): 90333327

約数列:

[1, 3, 7, 21, 71, 127, 213, 381, 497, 853, 889, 1491, 2559, 2667, 5971, 9017, 17913, 27051, 60563, 63119, 108331, 181689, 189357, 324993, 423941, 758317, 1271823, 2274951, 7691501, 23074503, 53840507, 161521521]

約数ペア:

[(1, 161521521), (3, 53840507), (7, 23074503), (21, 7691501), (71, 2274951), (127, 1271823), (213, 758317), (381, 423941), (497, 324993), (853, 189357), (889, 181689), (1491, 108331), (2559, 63119), (2667, 60563), (5971, 27051), (9017, 17913)]