18289964

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1446

約数の個数: 48

約数和(自身を含む): 40862976

約数和(自身を除く): 22573012

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1381, 1892, 2762, 3311, 5524, 6622, 9667, 13244, 15191, 19334, 30382, 38668, 59383, 60764, 106337, 118766, 212674, 237532, 415681, 425348, 653213, 831362, 1306426, 1662724, 2612852, 4572491, 9144982, 18289964]

約数ペア:

[(1, 18289964), (2, 9144982), (4, 4572491), (7, 2612852), (11, 1662724), (14, 1306426), (22, 831362), (28, 653213), (43, 425348), (44, 415681), (77, 237532), (86, 212674), (154, 118766), (172, 106337), (301, 60764), (308, 59383), (473, 38668), (602, 30382), (946, 19334), (1204, 15191), (1381, 13244), (1892, 9667), (2762, 6622), (3311, 5524)]