18993904

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{10891}}^1$

素因数の和:11008

約数の個数: 20

約数和(自身を含む): 37141720

約数和(自身を除く): 18147816

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 10891, 21782, 43564, 87128, 174256, 1187119, 2374238, 4748476, 9496952, 18993904]

約数ペア:

[(1, 18993904), (2, 9496952), (4, 4748476), (8, 2374238), (16, 1187119), (109, 174256), (218, 87128), (436, 43564), (872, 21782), (1744, 10891)]