19841420

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{1321}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 41754048

約数和(自身を除く): 21912628

約数列:

[1, 2, 4, 5, 10, 20, 751, 1321, 1502, 2642, 3004, 3755, 5284, 6605, 7510, 13210, 15020, 26420, 992071, 1984142, 3968284, 4960355, 9920710, 19841420]

約数ペア:

[(1, 19841420), (2, 9920710), (4, 4960355), (5, 3968284), (10, 1984142), (20, 992071), (751, 26420), (1321, 15020), (1502, 13210), (2642, 7510), (3004, 6605), (3755, 5284)]