21391212

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{61469}}^1$

素因数の和:61505

約数の個数: 24

約数和(自身を含む): 51634800

約数和(自身を除く): 30243588

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 116, 174, 348, 61469, 122938, 184407, 245876, 368814, 737628, 1782601, 3565202, 5347803, 7130404, 10695606, 21391212]

約数ペア:

[(1, 21391212), (2, 10695606), (3, 7130404), (4, 5347803), (6, 3565202), (12, 1782601), (29, 737628), (58, 368814), (87, 245876), (116, 184407), (174, 122938), (348, 61469)]