21838012

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 45660160

約数和(自身を除く): 23822148

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 139, 181, 217, 278, 362, 434, 556, 724, 868, 973, 1267, 1946, 2534, 3892, 4309, 5068, 5611, 8618, 11222, 17236, 22444, 25159, 30163, 39277, 50318, 60326, 78554, 100636, 120652, 157108, 176113, 352226, 704452, 779929, 1559858, 3119716, 5459503, 10919006, 21838012]

約数ペア:

[(1, 21838012), (2, 10919006), (4, 5459503), (7, 3119716), (14, 1559858), (28, 779929), (31, 704452), (62, 352226), (124, 176113), (139, 157108), (181, 120652), (217, 100636), (278, 78554), (362, 60326), (434, 50318), (556, 39277), (724, 30163), (868, 25159), (973, 22444), (1267, 17236), (1946, 11222), (2534, 8618), (3892, 5611), (4309, 5068)]