20120863749

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3491}}^1\times {\mathrm{11933}}^1$

素因数の和:15457

約数の個数: 32

約数和(自身を含む): 32005269504

約数和(自身を除く): 11884405755

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 3491, 10473, 11933, 24437, 35799, 73311, 80293, 83531, 240879, 250593, 274459, 562051, 823377, 1686153, 1921213, 5763639, 41658103, 124974309, 291606721, 874820163, 958136369, 2874409107, 6706954583, 20120863749]

約数ペア:

[(1, 20120863749), (3, 6706954583), (7, 2874409107), (21, 958136369), (23, 874820163), (69, 291606721), (161, 124974309), (483, 41658103), (3491, 5763639), (10473, 1921213), (11933, 1686153), (24437, 823377), (35799, 562051), (73311, 274459), (80293, 250593), (83531, 240879)]