21043250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{2053}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 40373424

約数和(自身を除く): 19330174

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 410, 1025, 2050, 2053, 4106, 5125, 10250, 10265, 20530, 51325, 84173, 102650, 168346, 256625, 420865, 513250, 841730, 2104325, 4208650, 10521625, 21043250]

約数ペア:

[(1, 21043250), (2, 10521625), (5, 4208650), (10, 2104325), (25, 841730), (41, 513250), (50, 420865), (82, 256625), (125, 168346), (205, 102650), (250, 84173), (410, 51325), (1025, 20530), (2050, 10265), (2053, 10250), (4106, 5125)]