21754103675

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{1487}}^1\times {\mathrm{1621}}^1$

素因数の和:3156

約数の個数: 36

約数和(自身を含む): 28506273696

約数和(自身を除く): 6752170021

約数列:

[1, 5, 19, 25, 95, 361, 475, 1487, 1621, 1805, 7435, 8105, 9025, 28253, 30799, 37175, 40525, 141265, 153995, 536807, 585181, 706325, 769975, 2410427, 2684035, 2925905, 12052135, 13420175, 14629525, 45798113, 60260675, 228990565, 870164147, 1144952825, 4350820735, 21754103675]

約数ペア:

[(1, 21754103675), (5, 4350820735), (19, 1144952825), (25, 870164147), (95, 228990565), (361, 60260675), (475, 45798113), (1487, 14629525), (1621, 13420175), (1805, 12052135), (7435, 2925905), (8105, 2684035), (9025, 2410427), (28253, 769975), (30799, 706325), (37175, 585181), (40525, 536807), (141265, 153995)]