21686128

素因数分解:

$2^4\times {\mathrm{587}}^1\times {\mathrm{2309}}^1$

素因数の和:2904

約数の個数: 20

約数和(自身を含む): 42106680

約数和(自身を除く): 20420552

約数列:

[1, 2, 4, 8, 16, 587, 1174, 2309, 2348, 4618, 4696, 9236, 9392, 18472, 36944, 1355383, 2710766, 5421532, 10843064, 21686128]

約数ペア:

[(1, 21686128), (2, 10843064), (4, 5421532), (8, 2710766), (16, 1355383), (587, 36944), (1174, 18472), (2309, 9392), (2348, 9236), (4618, 4696)]