21541938

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 49212576

約数和(自身を除く): 27670638

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 529, 617, 759, 1058, 1234, 1518, 1587, 1851, 3174, 3702, 5819, 6787, 11638, 13574, 14191, 17457, 20361, 28382, 34914, 40722, 42573, 85146, 156101, 312202, 326393, 468303, 652786, 936606, 979179, 1958358, 3590323, 7180646, 10770969, 21541938]

約数ペア:

[(1, 21541938), (2, 10770969), (3, 7180646), (6, 3590323), (11, 1958358), (22, 979179), (23, 936606), (33, 652786), (46, 468303), (66, 326393), (69, 312202), (138, 156101), (253, 85146), (506, 42573), (529, 40722), (617, 34914), (759, 28382), (1058, 20361), (1234, 17457), (1518, 14191), (1587, 13574), (1851, 11638), (3174, 6787), (3702, 5819)]