21374444

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4517}}^1$

素因数の和:4554

約数の個数: 36

約数和(自身を含む): 46300464

約数和(自身を除く): 24926020

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 4517, 4732, 9034, 18068, 31619, 58721, 63238, 117442, 126476, 234884, 411047, 763373, 822094, 1526746, 1644188, 3053492, 5343611, 10687222, 21374444]

約数ペア:

[(1, 21374444), (2, 10687222), (4, 5343611), (7, 3053492), (13, 1644188), (14, 1526746), (26, 822094), (28, 763373), (52, 411047), (91, 234884), (169, 126476), (182, 117442), (338, 63238), (364, 58721), (676, 31619), (1183, 18068), (2366, 9034), (4517, 4732)]