21636826

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:246

約数の個数: 32

約数和(自身を含む): 34898688

約数和(自身を除く): 13261862

約数列:

[1, 2, 43, 47, 53, 86, 94, 101, 106, 202, 2021, 2279, 2491, 4042, 4343, 4558, 4747, 4982, 5353, 8686, 9494, 10706, 107113, 204121, 214226, 230179, 251591, 408242, 460358, 503182, 10818413, 21636826]

約数ペア:

[(1, 21636826), (2, 10818413), (43, 503182), (47, 460358), (53, 408242), (86, 251591), (94, 230179), (101, 214226), (106, 204121), (202, 107113), (2021, 10706), (2279, 9494), (2491, 8686), (4042, 5353), (4343, 4982), (4558, 4747)]