21037515268

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{131101}}^1$

素因数の和:131644

約数の個数: 48

約数和(自身を含む): 45988483968

約数和(自身を除く): 24950968700

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 521, 1042, 2084, 3647, 5731, 7294, 11462, 14588, 22924, 40117, 80234, 131101, 160468, 262202, 524404, 917707, 1442111, 1835414, 2884222, 3670828, 5768444, 10094777, 20189554, 40379108, 68303621, 136607242, 273214484, 478125347, 751339831, 956250694, 1502679662, 1912501388, 3005359324, 5259378817, 10518757634, 21037515268]

約数ペア:

[(1, 21037515268), (2, 10518757634), (4, 5259378817), (7, 3005359324), (11, 1912501388), (14, 1502679662), (22, 956250694), (28, 751339831), (44, 478125347), (77, 273214484), (154, 136607242), (308, 68303621), (521, 40379108), (1042, 20189554), (2084, 10094777), (3647, 5768444), (5731, 3670828), (7294, 2884222), (11462, 1835414), (14588, 1442111), (22924, 917707), (40117, 524404), (80234, 262202), (131101, 160468)]