18827890

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{8443}}^1$

素因数の和:8673

約数の個数: 16

約数和(自身を含む): 34046208

約数和(自身を除く): 15218318

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 8443, 16886, 42215, 84430, 1882789, 3765578, 9413945, 18827890]

約数ペア:

[(1, 18827890), (2, 9413945), (5, 3765578), (10, 1882789), (223, 84430), (446, 42215), (1115, 16886), (2230, 8443)]