20217210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51839}}^1$

素因数の和:51862

約数の個数: 32

約数和(自身を含む): 52254720

約数和(自身を除く): 32037510

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51839, 103678, 155517, 259195, 311034, 518390, 673907, 777585, 1347814, 1555170, 2021721, 3369535, 4043442, 6739070, 10108605, 20217210]

約数ペア:

[(1, 20217210), (2, 10108605), (3, 6739070), (5, 4043442), (6, 3369535), (10, 2021721), (13, 1555170), (15, 1347814), (26, 777585), (30, 673907), (39, 518390), (65, 311034), (78, 259195), (130, 155517), (195, 103678), (390, 51839)]