21340670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1181}}^1$

素因数の和:1340

約数の個数: 32

約数和(自身を含む): 41700960

約数和(自身を除く): 20360290

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1181, 1390, 1807, 2362, 3614, 5905, 9035, 11810, 15353, 18070, 30706, 76765, 153530, 164159, 328318, 820795, 1641590, 2134067, 4268134, 10670335, 21340670]

約数ペア:

[(1, 21340670), (2, 10670335), (5, 4268134), (10, 2134067), (13, 1641590), (26, 820795), (65, 328318), (130, 164159), (139, 153530), (278, 76765), (695, 30706), (1181, 18070), (1390, 15353), (1807, 11810), (2362, 9035), (3614, 5905)]