20998432

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7211}}^1$

素因数の和:7241

約数の個数: 48

約数和(自身を含む): 50887872

約数和(自身を除く): 29889440

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7211, 14422, 28844, 50477, 57688, 93743, 100954, 115376, 187486, 201908, 230752, 374972, 403816, 656201, 749944, 807632, 1312402, 1499888, 1615264, 2624804, 2999776, 5249608, 10499216, 20998432]

約数ペア:

[(1, 20998432), (2, 10499216), (4, 5249608), (7, 2999776), (8, 2624804), (13, 1615264), (14, 1499888), (16, 1312402), (26, 807632), (28, 749944), (32, 656201), (52, 403816), (56, 374972), (91, 230752), (104, 201908), (112, 187486), (182, 115376), (208, 100954), (224, 93743), (364, 57688), (416, 50477), (728, 28844), (1456, 14422), (2912, 7211)]