31775289

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:749

約数の個数: 32

約数和(自身を含む): 52469760

約数和(自身を除く): 20694471

約数列:

[1, 3, 7, 13, 21, 39, 91, 239, 273, 487, 717, 1461, 1673, 3107, 3409, 5019, 6331, 9321, 10227, 18993, 21749, 44317, 65247, 116393, 132951, 349179, 814751, 1513109, 2444253, 4539327, 10591763, 31775289]

約数ペア:

[(1, 31775289), (3, 10591763), (7, 4539327), (13, 2444253), (21, 1513109), (39, 814751), (91, 349179), (239, 132951), (273, 116393), (487, 65247), (717, 44317), (1461, 21749), (1673, 18993), (3107, 10227), (3409, 9321), (5019, 6331)]