20738895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{487}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 35417088

約数和(自身を除く): 14678193

約数列:

[1, 3, 5, 15, 17, 51, 85, 167, 255, 487, 501, 835, 1461, 2435, 2505, 2839, 7305, 8279, 8517, 14195, 24837, 41395, 42585, 81329, 124185, 243987, 406645, 1219935, 1382593, 4147779, 6912965, 20738895]

約数ペア:

[(1, 20738895), (3, 6912965), (5, 4147779), (15, 1382593), (17, 1219935), (51, 406645), (85, 243987), (167, 124185), (255, 81329), (487, 42585), (501, 41395), (835, 24837), (1461, 14195), (2435, 8517), (2505, 8279), (2839, 7305)]