19878068

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{22901}}^1$

素因数の和:22943

約数の個数: 24

約数和(自身を含む): 41040384

約数和(自身を除く): 21162316

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 22901, 45802, 91604, 160307, 320614, 641228, 709931, 1419862, 2839724, 4969517, 9939034, 19878068]

約数ペア:

[(1, 19878068), (2, 9939034), (4, 4969517), (7, 2839724), (14, 1419862), (28, 709931), (31, 641228), (62, 320614), (124, 160307), (217, 91604), (434, 45802), (868, 22901)]