21197748

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1123}}^1$

素因数の和:1165

約数の個数: 72

約数和(自身を含む): 58600864

約数和(自身を除く): 37403116

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 121, 132, 143, 156, 242, 286, 363, 429, 484, 572, 726, 858, 1123, 1452, 1573, 1716, 2246, 3146, 3369, 4492, 4719, 6292, 6738, 9438, 12353, 13476, 14599, 18876, 24706, 29198, 37059, 43797, 49412, 58396, 74118, 87594, 135883, 148236, 160589, 175188, 271766, 321178, 407649, 481767, 543532, 642356, 815298, 963534, 1630596, 1766479, 1927068, 3532958, 5299437, 7065916, 10598874, 21197748]

約数ペア:

[(1, 21197748), (2, 10598874), (3, 7065916), (4, 5299437), (6, 3532958), (11, 1927068), (12, 1766479), (13, 1630596), (22, 963534), (26, 815298), (33, 642356), (39, 543532), (44, 481767), (52, 407649), (66, 321178), (78, 271766), (121, 175188), (132, 160589), (143, 148236), (156, 135883), (242, 87594), (286, 74118), (363, 58396), (429, 49412), (484, 43797), (572, 37059), (726, 29198), (858, 24706), (1123, 18876), (1452, 14599), (1573, 13476), (1716, 12353), (2246, 9438), (3146, 6738), (3369, 6292), (4492, 4719)]