21490866

素因数分解:

$2^1\times 3^3\times {\mathrm{149}}^1\times {\mathrm{2671}}^1$

素因数の和:2831

約数の個数: 32

約数和(自身を含む): 48096000

約数和(自身を除く): 26605134

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 149, 298, 447, 894, 1341, 2671, 2682, 4023, 5342, 8013, 8046, 16026, 24039, 48078, 72117, 144234, 397979, 795958, 1193937, 2387874, 3581811, 7163622, 10745433, 21490866]

約数ペア:

[(1, 21490866), (2, 10745433), (3, 7163622), (6, 3581811), (9, 2387874), (18, 1193937), (27, 795958), (54, 397979), (149, 144234), (298, 72117), (447, 48078), (894, 24039), (1341, 16026), (2671, 8046), (2682, 8013), (4023, 5342)]