21387832

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 41478480

約数和(自身を除く): 20090648

約数列:

[1, 2, 4, 8, 53, 73, 106, 146, 212, 292, 424, 584, 691, 1382, 2764, 3869, 5528, 7738, 15476, 30952, 36623, 50443, 73246, 100886, 146492, 201772, 292984, 403544, 2673479, 5346958, 10693916, 21387832]

約数ペア:

[(1, 21387832), (2, 10693916), (4, 5346958), (8, 2673479), (53, 403544), (73, 292984), (106, 201772), (146, 146492), (212, 100886), (292, 73246), (424, 50443), (584, 36623), (691, 30952), (1382, 15476), (2764, 7738), (3869, 5528)]