21388542

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1627}}^1$

素因数の和:1952

約数の個数: 32

約数和(自身を含む): 49074432

約数和(自身を除く): 27685890

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 313, 626, 939, 1627, 1878, 2191, 3254, 4382, 4881, 6573, 9762, 11389, 13146, 22778, 34167, 68334, 509251, 1018502, 1527753, 3055506, 3564757, 7129514, 10694271, 21388542]

約数ペア:

[(1, 21388542), (2, 10694271), (3, 7129514), (6, 3564757), (7, 3055506), (14, 1527753), (21, 1018502), (42, 509251), (313, 68334), (626, 34167), (939, 22778), (1627, 13146), (1878, 11389), (2191, 9762), (3254, 6573), (4382, 4881)]