19808595

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 36447840

約数和(自身を除く): 16639245

約数列:

[1, 3, 5, 9, 15, 29, 43, 45, 87, 129, 145, 215, 261, 353, 387, 435, 645, 1059, 1247, 1305, 1765, 1935, 3177, 3741, 5295, 6235, 10237, 11223, 15179, 15885, 18705, 30711, 45537, 51185, 56115, 75895, 92133, 136611, 153555, 227685, 440191, 460665, 683055, 1320573, 2200955, 3961719, 6602865, 19808595]

約数ペア:

[(1, 19808595), (3, 6602865), (5, 3961719), (9, 2200955), (15, 1320573), (29, 683055), (43, 460665), (45, 440191), (87, 227685), (129, 153555), (145, 136611), (215, 92133), (261, 75895), (353, 56115), (387, 51185), (435, 45537), (645, 30711), (1059, 18705), (1247, 15885), (1305, 15179), (1765, 11223), (1935, 10237), (3177, 6235), (3741, 5295)]