1281987

素因数分解:

$3^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:62

約数の個数: 60

約数和(自身を含む): 2482920

約数和(自身を除く): 1200933

約数列:

[1, 3, 7, 9, 17, 19, 21, 27, 49, 51, 57, 63, 81, 119, 133, 147, 153, 171, 189, 323, 357, 399, 441, 459, 513, 567, 833, 931, 969, 1071, 1197, 1323, 1377, 1539, 2261, 2499, 2793, 2907, 3213, 3591, 3969, 6783, 7497, 8379, 8721, 9639, 10773, 15827, 20349, 22491, 25137, 26163, 47481, 61047, 67473, 75411, 142443, 183141, 427329, 1281987]

約数ペア:

[(1, 1281987), (3, 427329), (7, 183141), (9, 142443), (17, 75411), (19, 67473), (21, 61047), (27, 47481), (49, 26163), (51, 25137), (57, 22491), (63, 20349), (81, 15827), (119, 10773), (133, 9639), (147, 8721), (153, 8379), (171, 7497), (189, 6783), (323, 3969), (357, 3591), (399, 3213), (441, 2907), (459, 2793), (513, 2499), (567, 2261), (833, 1539), (931, 1377), (969, 1323), (1071, 1197)]