20833876

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 22348844

約数列:

[1, 2, 4, 7, 14, 28, 53, 101, 106, 139, 202, 212, 278, 371, 404, 556, 707, 742, 973, 1414, 1484, 1946, 2828, 3892, 5353, 7367, 10706, 14039, 14734, 21412, 28078, 29468, 37471, 51569, 56156, 74942, 98273, 103138, 149884, 196546, 206276, 393092, 744067, 1488134, 2976268, 5208469, 10416938, 20833876]

約数ペア:

[(1, 20833876), (2, 10416938), (4, 5208469), (7, 2976268), (14, 1488134), (28, 744067), (53, 393092), (101, 206276), (106, 196546), (139, 149884), (202, 103138), (212, 98273), (278, 74942), (371, 56156), (404, 51569), (556, 37471), (707, 29468), (742, 28078), (973, 21412), (1414, 14734), (1484, 14039), (1946, 10706), (2828, 7367), (3892, 5353)]