21100850

素因数分解:

$2^1\times 5^2\times {\mathrm{503}}^1\times {\mathrm{839}}^1$

素因数の和:1354

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 18271630

約数列:

[1, 2, 5, 10, 25, 50, 503, 839, 1006, 1678, 2515, 4195, 5030, 8390, 12575, 20975, 25150, 41950, 422017, 844034, 2110085, 4220170, 10550425, 21100850]

約数ペア:

[(1, 21100850), (2, 10550425), (5, 4220170), (10, 2110085), (25, 844034), (50, 422017), (503, 41950), (839, 25150), (1006, 20975), (1678, 12575), (2515, 8390), (4195, 5030)]