291217689

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149113}}^1$

素因数の和:149157

約数の個数: 24

約数和(自身を含む): 496251392

約数和(自身を除く): 205033703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 149113, 447339, 1043791, 1342017, 3131373, 4622503, 9394119, 13867509, 32357521, 41602527, 97072563, 291217689]

約数ペア:

[(1, 291217689), (3, 97072563), (7, 41602527), (9, 32357521), (21, 13867509), (31, 9394119), (63, 4622503), (93, 3131373), (217, 1342017), (279, 1043791), (651, 447339), (1953, 149113)]