81767931

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{317}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 127484928

約数和(自身を除く): 45716997

約数列:

[1, 3, 7, 21, 71, 173, 213, 317, 497, 519, 951, 1211, 1491, 2219, 3633, 6657, 12283, 22507, 36849, 54841, 67521, 85981, 157549, 164523, 257943, 383887, 472647, 1151661, 3893711, 11681133, 27255977, 81767931]

約数ペア:

[(1, 81767931), (3, 27255977), (7, 11681133), (21, 3893711), (71, 1151661), (173, 472647), (213, 383887), (317, 257943), (497, 164523), (519, 157549), (951, 85981), (1211, 67521), (1491, 54841), (2219, 36849), (3633, 22507), (6657, 12283)]