21428650

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{10453}}^1$

素因数の和:10506

約数の個数: 24

約数和(自身を含む): 40833324

約数和(自身を除く): 19404674

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 10453, 20906, 52265, 104530, 261325, 428573, 522650, 857146, 2142865, 4285730, 10714325, 21428650]

約数ペア:

[(1, 21428650), (2, 10714325), (5, 4285730), (10, 2142865), (25, 857146), (41, 522650), (50, 428573), (82, 261325), (205, 104530), (410, 52265), (1025, 20906), (2050, 10453)]