21331050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10939}}^1$

素因数の和:10967

約数の個数: 48

約数和(自身を含む): 56975520

約数和(自身を除く): 35644470

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10939, 21878, 32817, 54695, 65634, 109390, 142207, 164085, 273475, 284414, 328170, 426621, 546950, 711035, 820425, 853242, 1422070, 1640850, 2133105, 3555175, 4266210, 7110350, 10665525, 21331050]

約数ペア:

[(1, 21331050), (2, 10665525), (3, 7110350), (5, 4266210), (6, 3555175), (10, 2133105), (13, 1640850), (15, 1422070), (25, 853242), (26, 820425), (30, 711035), (39, 546950), (50, 426621), (65, 328170), (75, 284414), (78, 273475), (130, 164085), (150, 142207), (195, 109390), (325, 65634), (390, 54695), (650, 32817), (975, 21878), (1950, 10939)]