21289310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16007}}^1$

素因数の和:16040

約数の個数: 32

約数和(自身を含む): 46103040

約数和(自身を除く): 24813730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16007, 32014, 80035, 112049, 160070, 224098, 304133, 560245, 608266, 1120490, 1520665, 2128931, 3041330, 4257862, 10644655, 21289310]

約数ペア:

[(1, 21289310), (2, 10644655), (5, 4257862), (7, 3041330), (10, 2128931), (14, 1520665), (19, 1120490), (35, 608266), (38, 560245), (70, 304133), (95, 224098), (133, 160070), (190, 112049), (266, 80035), (665, 32014), (1330, 16007)]