20212612

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8111}}^1$

素因数の和:8211

約数の個数: 24

約数和(自身を含む): 40884480

約数和(自身を除く): 20671868

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 8111, 16222, 32444, 56777, 113554, 227108, 721879, 1443758, 2887516, 5053153, 10106306, 20212612]

約数ペア:

[(1, 20212612), (2, 10106306), (4, 5053153), (7, 2887516), (14, 1443758), (28, 721879), (89, 227108), (178, 113554), (356, 56777), (623, 32444), (1246, 16222), (2492, 8111)]