20408426423

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{347}}^1\times {\mathrm{2699}}^1$

素因数の和:3347

約数の個数: 32

約数和(自身を含む): 25617254400

約数和(自身を除く): 5208827977

約数列:

[1, 7, 11, 77, 283, 347, 1981, 2429, 2699, 3113, 3817, 18893, 21791, 26719, 29689, 98201, 207823, 687407, 763817, 936553, 1080211, 5346719, 6555871, 7561477, 8401987, 10302083, 58813909, 72114581, 265044499, 1855311493, 2915489489, 20408426423]

約数ペア:

[(1, 20408426423), (7, 2915489489), (11, 1855311493), (77, 265044499), (283, 72114581), (347, 58813909), (1981, 10302083), (2429, 8401987), (2699, 7561477), (3113, 6555871), (3817, 5346719), (18893, 1080211), (21791, 936553), (26719, 763817), (29689, 687407), (98201, 207823)]