31940013

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 52647936

約数和(自身を除く): 20707923

約数列:

[1, 3, 7, 21, 31, 43, 49, 93, 129, 147, 163, 217, 301, 489, 651, 903, 1141, 1333, 1519, 2107, 3423, 3999, 4557, 5053, 6321, 7009, 7987, 9331, 15159, 21027, 23961, 27993, 35371, 49063, 65317, 106113, 147189, 195951, 217279, 247597, 343441, 651837, 742791, 1030323, 1520953, 4562859, 10646671, 31940013]

約数ペア:

[(1, 31940013), (3, 10646671), (7, 4562859), (21, 1520953), (31, 1030323), (43, 742791), (49, 651837), (93, 343441), (129, 247597), (147, 217279), (163, 195951), (217, 147189), (301, 106113), (489, 65317), (651, 49063), (903, 35371), (1141, 27993), (1333, 23961), (1519, 21027), (2107, 15159), (3423, 9331), (3999, 7987), (4557, 7009), (5053, 6321)]