20969715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2029}}^1$

素因数の和:2103

約数の個数: 32

約数和(自身を含む): 36832320

約数和(自身を除く): 15862605

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 2029, 2067, 3445, 6087, 10145, 10335, 26377, 30435, 79131, 107537, 131885, 322611, 395655, 537685, 1397981, 1613055, 4193943, 6989905, 20969715]

約数ペア:

[(1, 20969715), (3, 6989905), (5, 4193943), (13, 1613055), (15, 1397981), (39, 537685), (53, 395655), (65, 322611), (159, 131885), (195, 107537), (265, 79131), (689, 30435), (795, 26377), (2029, 10335), (2067, 10145), (3445, 6087)]