21540068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 21437020

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 101, 131, 148, 202, 262, 404, 407, 524, 814, 1111, 1441, 1628, 2222, 2882, 3737, 4444, 4847, 5764, 7474, 9694, 13231, 14948, 19388, 26462, 41107, 52924, 53317, 82214, 106634, 145541, 164428, 213268, 291082, 489547, 582164, 979094, 1958188, 5385017, 10770034, 21540068]

約数ペア:

[(1, 21540068), (2, 10770034), (4, 5385017), (11, 1958188), (22, 979094), (37, 582164), (44, 489547), (74, 291082), (101, 213268), (131, 164428), (148, 145541), (202, 106634), (262, 82214), (404, 53317), (407, 52924), (524, 41107), (814, 26462), (1111, 19388), (1441, 14948), (1628, 13231), (2222, 9694), (2882, 7474), (3737, 5764), (4444, 4847)]