21389064

素因数分解:

$2^3\times 3^1\times {\mathrm{409}}^1\times {\mathrm{2179}}^1$

素因数の和:2597

約数の個数: 32

約数和(自身を含む): 53628000

約数和(自身を除く): 32238936

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 409, 818, 1227, 1636, 2179, 2454, 3272, 4358, 4908, 6537, 8716, 9816, 13074, 17432, 26148, 52296, 891211, 1782422, 2673633, 3564844, 5347266, 7129688, 10694532, 21389064]

約数ペア:

[(1, 21389064), (2, 10694532), (3, 7129688), (4, 5347266), (6, 3564844), (8, 2673633), (12, 1782422), (24, 891211), (409, 52296), (818, 26148), (1227, 17432), (1636, 13074), (2179, 9816), (2454, 8716), (3272, 6537), (4358, 4908)]