21081646574

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{487}}^1\times {\mathrm{11279}}^1$

素因数の和:11888

約数の個数: 32

約数和(自身を含む): 33688396800

約数和(自身を除く): 12606750226

約数列:

[1, 2, 19, 38, 101, 202, 487, 974, 1919, 3838, 9253, 11279, 18506, 22558, 49187, 98374, 214301, 428602, 934553, 1139179, 1869106, 2278358, 5492873, 10985746, 21644401, 43288802, 104364587, 208729174, 554780173, 1109560346, 10540823287, 21081646574]

約数ペア:

[(1, 21081646574), (2, 10540823287), (19, 1109560346), (38, 554780173), (101, 208729174), (202, 104364587), (487, 43288802), (974, 21644401), (1919, 10985746), (3838, 5492873), (9253, 2278358), (11279, 1869106), (18506, 1139179), (22558, 934553), (49187, 428602), (98374, 214301)]