21106427504

素因数分解:

$2^4\times {\mathrm{193}}^1\times {\mathrm{641}}^1\times {\mathrm{10663}}^1$

素因数の和:11505

約数の個数: 40

約数和(自身を含む): 41173576032

約数和(自身を除く): 20067148528

約数列:

[1, 2, 4, 8, 16, 193, 386, 641, 772, 1282, 1544, 2564, 3088, 5128, 10256, 10663, 21326, 42652, 85304, 123713, 170608, 247426, 494852, 989704, 1979408, 2057959, 4115918, 6834983, 8231836, 13669966, 16463672, 27339932, 32927344, 54679864, 109359728, 1319151719, 2638303438, 5276606876, 10553213752, 21106427504]

約数ペア:

[(1, 21106427504), (2, 10553213752), (4, 5276606876), (8, 2638303438), (16, 1319151719), (193, 109359728), (386, 54679864), (641, 32927344), (772, 27339932), (1282, 16463672), (1544, 13669966), (2564, 8231836), (3088, 6834983), (5128, 4115918), (10256, 2057959), (10663, 1979408), (21326, 989704), (42652, 494852), (85304, 247426), (123713, 170608)]