19964944

素因数分解:

$2^4\times {\mathrm{179}}^1\times {\mathrm{6971}}^1$

素因数の和:7158

約数の個数: 20

約数和(自身を含む): 38903760

約数和(自身を除く): 18938816

約数列:

[1, 2, 4, 8, 16, 179, 358, 716, 1432, 2864, 6971, 13942, 27884, 55768, 111536, 1247809, 2495618, 4991236, 9982472, 19964944]

約数ペア:

[(1, 19964944), (2, 9982472), (4, 4991236), (8, 2495618), (16, 1247809), (179, 111536), (358, 55768), (716, 27884), (1432, 13942), (2864, 6971)]