18861466

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 32598720

約数和(自身を除く): 13737254

約数列:

[1, 2, 13, 17, 26, 34, 139, 221, 278, 307, 442, 614, 1807, 2363, 3614, 3991, 4726, 5219, 7982, 10438, 30719, 42673, 61438, 67847, 85346, 135694, 554749, 725441, 1109498, 1450882, 9430733, 18861466]

約数ペア:

[(1, 18861466), (2, 9430733), (13, 1450882), (17, 1109498), (26, 725441), (34, 554749), (139, 135694), (221, 85346), (278, 67847), (307, 61438), (442, 42673), (614, 30719), (1807, 10438), (2363, 7982), (3614, 5219), (3991, 4726)]