91811307

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{443}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 143216640

約数和(自身を除く): 51405333

約数列:

[1, 3, 7, 21, 71, 139, 213, 417, 443, 497, 973, 1329, 1491, 2919, 3101, 9303, 9869, 29607, 31453, 61577, 69083, 94359, 184731, 207249, 220171, 431039, 660513, 1293117, 4371967, 13115901, 30603769, 91811307]

約数ペア:

[(1, 91811307), (3, 30603769), (7, 13115901), (21, 4371967), (71, 1293117), (139, 660513), (213, 431039), (417, 220171), (443, 207249), (497, 184731), (973, 94359), (1329, 69083), (1491, 61577), (2919, 31453), (3101, 29607), (9303, 9869)]