2113420

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 4466448

約数和(自身を除く): 2353028

約数列:

[1, 2, 4, 5, 10, 20, 251, 421, 502, 842, 1004, 1255, 1684, 2105, 2510, 4210, 5020, 8420, 105671, 211342, 422684, 528355, 1056710, 2113420]

約数ペア:

[(1, 2113420), (2, 1056710), (4, 528355), (5, 422684), (10, 211342), (20, 105671), (251, 8420), (421, 5020), (502, 4210), (842, 2510), (1004, 2105), (1255, 1684)]