17990028

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{71389}}^1$

素因数の和:71406

約数の個数: 36

約数和(自身を含む): 51971920

約数和(自身を除く): 33981892

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 71389, 142778, 214167, 285556, 428334, 499723, 642501, 856668, 999446, 1285002, 1499169, 1998892, 2570004, 2998338, 4497507, 5996676, 8995014, 17990028]

約数ペア:

[(1, 17990028), (2, 8995014), (3, 5996676), (4, 4497507), (6, 2998338), (7, 2570004), (9, 1998892), (12, 1499169), (14, 1285002), (18, 999446), (21, 856668), (28, 642501), (36, 499723), (42, 428334), (63, 285556), (84, 214167), (126, 142778), (252, 71389)]