18978652

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1433}}^1$

素因数の和:1498

約数の個数: 48

約数和(自身を含む): 42400512

約数和(自身を除く): 23421860

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1433, 1892, 2866, 3311, 5732, 6622, 10031, 13244, 15763, 20062, 31526, 40124, 61619, 63052, 110341, 123238, 220682, 246476, 431333, 441364, 677809, 862666, 1355618, 1725332, 2711236, 4744663, 9489326, 18978652]

約数ペア:

[(1, 18978652), (2, 9489326), (4, 4744663), (7, 2711236), (11, 1725332), (14, 1355618), (22, 862666), (28, 677809), (43, 441364), (44, 431333), (77, 246476), (86, 220682), (154, 123238), (172, 110341), (301, 63052), (308, 61619), (473, 40124), (602, 31526), (946, 20062), (1204, 15763), (1433, 13244), (1892, 10031), (2866, 6622), (3311, 5732)]