21166990375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{125527}}^1$

素因数の和:125632

約数の個数: 32

約数和(自身を含む): 28198609920

約数和(自身を除く): 7031619545

約数列:

[1, 5, 19, 25, 71, 95, 125, 355, 475, 1349, 1775, 2375, 6745, 8875, 33725, 125527, 168625, 627635, 2385013, 3138175, 8912417, 11925065, 15690875, 44562085, 59625325, 169335923, 222810425, 298126625, 846679615, 1114052125, 4233398075, 21166990375]

約数ペア:

[(1, 21166990375), (5, 4233398075), (19, 1114052125), (25, 846679615), (71, 298126625), (95, 222810425), (125, 169335923), (355, 59625325), (475, 44562085), (1349, 15690875), (1775, 11925065), (2375, 8912417), (6745, 3138175), (8875, 2385013), (33725, 627635), (125527, 168625)]