20667735

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{971}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 40030848

約数和(自身を除く): 19363113

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 129, 165, 215, 387, 473, 495, 645, 971, 1419, 1935, 2365, 2913, 4257, 4855, 7095, 8739, 10681, 14565, 21285, 32043, 41753, 43695, 53405, 96129, 125259, 160215, 208765, 375777, 459283, 480645, 626295, 1377849, 1878885, 2296415, 4133547, 6889245, 20667735]

約数ペア:

[(1, 20667735), (3, 6889245), (5, 4133547), (9, 2296415), (11, 1878885), (15, 1377849), (33, 626295), (43, 480645), (45, 459283), (55, 375777), (99, 208765), (129, 160215), (165, 125259), (215, 96129), (387, 53405), (473, 43695), (495, 41753), (645, 32043), (971, 21285), (1419, 14565), (1935, 10681), (2365, 8739), (2913, 7095), (4257, 4855)]