28843311

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 49248000

約数和(自身を除く): 20404689

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 399, 437, 449, 483, 931, 1127, 1311, 1347, 2793, 3059, 3143, 3381, 8531, 9177, 9429, 10327, 21413, 22001, 25593, 30981, 59717, 64239, 66003, 72289, 179151, 196213, 216867, 418019, 506023, 588639, 1254057, 1373491, 1518069, 4120473, 9614437, 28843311]

約数ペア:

[(1, 28843311), (3, 9614437), (7, 4120473), (19, 1518069), (21, 1373491), (23, 1254057), (49, 588639), (57, 506023), (69, 418019), (133, 216867), (147, 196213), (161, 179151), (399, 72289), (437, 66003), (449, 64239), (483, 59717), (931, 30981), (1127, 25593), (1311, 22001), (1347, 21413), (2793, 10327), (3059, 9429), (3143, 9177), (3381, 8531)]