21000565690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3221}}^1\times {\mathrm{50153}}^1$

素因数の和:53394

約数の個数: 32

約数和(自身を含む): 40722239376

約数和(自身を除く): 19721673686

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 3221, 6442, 16105, 32210, 41873, 50153, 83746, 100306, 209365, 250765, 418730, 501530, 651989, 1303978, 3259945, 6519890, 161542813, 323085626, 807714065, 1615428130, 2100056569, 4200113138, 10500282845, 21000565690]

約数ペア:

[(1, 21000565690), (2, 10500282845), (5, 4200113138), (10, 2100056569), (13, 1615428130), (26, 807714065), (65, 323085626), (130, 161542813), (3221, 6519890), (6442, 3259945), (16105, 1303978), (32210, 651989), (41873, 501530), (50153, 418730), (83746, 250765), (100306, 209365)]