19878084

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3517}}^1$

素因数の和:3684

約数の個数: 36

約数和(自身を含む): 50581804

約数和(自身を除く): 30703720

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3517, 5652, 7034, 10551, 14068, 21102, 31653, 42204, 63306, 126612, 552169, 1104338, 1656507, 2208676, 3313014, 4969521, 6626028, 9939042, 19878084]

約数ペア:

[(1, 19878084), (2, 9939042), (3, 6626028), (4, 4969521), (6, 3313014), (9, 2208676), (12, 1656507), (18, 1104338), (36, 552169), (157, 126612), (314, 63306), (471, 42204), (628, 31653), (942, 21102), (1413, 14068), (1884, 10551), (2826, 7034), (3517, 5652)]