213931521

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{22153}}^1$

素因数の和:22225

約数の個数: 24

約数和(自身を含む): 328322280

約数和(自身を除く): 114390759

約数列:

[1, 3, 9, 29, 37, 87, 111, 261, 333, 1073, 3219, 9657, 22153, 66459, 199377, 642437, 819661, 1927311, 2458983, 5781933, 7376949, 23770169, 71310507, 213931521]

約数ペア:

[(1, 213931521), (3, 71310507), (9, 23770169), (29, 7376949), (37, 5781933), (87, 2458983), (111, 1927311), (261, 819661), (333, 642437), (1073, 199377), (3219, 66459), (9657, 22153)]