71330931

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 122923008

約数和(自身を除く): 51592077

約数列:

[1, 3, 7, 9, 21, 37, 63, 71, 111, 213, 259, 333, 431, 497, 639, 777, 1293, 1491, 2331, 2627, 3017, 3879, 4473, 7881, 9051, 15947, 18389, 23643, 27153, 30601, 47841, 55167, 91803, 111629, 143523, 165501, 214207, 275409, 334887, 642621, 1004661, 1132237, 1927863, 3396711, 7925659, 10190133, 23776977, 71330931]

約数ペア:

[(1, 71330931), (3, 23776977), (7, 10190133), (9, 7925659), (21, 3396711), (37, 1927863), (63, 1132237), (71, 1004661), (111, 642621), (213, 334887), (259, 275409), (333, 214207), (431, 165501), (497, 143523), (639, 111629), (777, 91803), (1293, 55167), (1491, 47841), (2331, 30601), (2627, 27153), (3017, 23643), (3879, 18389), (4473, 15947), (7881, 9051)]