21151338

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{727}}^1$

素因数の和:1118

約数の個数: 32

約数和(自身を含む): 45741696

約数和(自身を除く): 24590358

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 373, 727, 746, 1119, 1454, 2181, 2238, 4362, 4849, 9451, 9698, 14547, 18902, 28353, 29094, 56706, 271171, 542342, 813513, 1627026, 3525223, 7050446, 10575669, 21151338]

約数ペア:

[(1, 21151338), (2, 10575669), (3, 7050446), (6, 3525223), (13, 1627026), (26, 813513), (39, 542342), (78, 271171), (373, 56706), (727, 29094), (746, 28353), (1119, 18902), (1454, 14547), (2181, 9698), (2238, 9451), (4362, 4849)]