21000939964

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1117309}}^1$

素因数の和:1117477

約数の個数: 24

約数和(自身を含む): 38042170880

約数和(自身を除く): 17041230916

約数列:

[1, 2, 4, 37, 74, 127, 148, 254, 508, 4699, 9398, 18796, 1117309, 2234618, 4469236, 41340433, 82680866, 141898243, 165361732, 283796486, 567592972, 5250234991, 10500469982, 21000939964]

約数ペア:

[(1, 21000939964), (2, 10500469982), (4, 5250234991), (37, 567592972), (74, 283796486), (127, 165361732), (148, 141898243), (254, 82680866), (508, 41340433), (4699, 4469236), (9398, 2234618), (18796, 1117309)]