21133057985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{941}}^1\times {\mathrm{4733}}^1$

素因数の和:5765

約数の個数: 32

約数和(自身を含む): 27719804448

約数和(自身を除く): 6586746463

約数列:

[1, 5, 13, 65, 73, 365, 941, 949, 4705, 4733, 4745, 12233, 23665, 61165, 61529, 68693, 307645, 343465, 345509, 893009, 1727545, 4453753, 4465045, 4491617, 22268765, 22458085, 57898789, 289493945, 325123969, 1625619845, 4226611597, 21133057985]

約数ペア:

[(1, 21133057985), (5, 4226611597), (13, 1625619845), (65, 325123969), (73, 289493945), (365, 57898789), (941, 22458085), (949, 22268765), (4705, 4491617), (4733, 4465045), (4745, 4453753), (12233, 1727545), (23665, 893009), (61165, 345509), (61529, 343465), (68693, 307645)]