21406276

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2729}}^1$

素因数の和:2823

約数の個数: 24

約数和(自身を含む): 39213720

約数和(自身を除く): 17807444

約数列:

[1, 2, 4, 37, 53, 74, 106, 148, 212, 1961, 2729, 3922, 5458, 7844, 10916, 100973, 144637, 201946, 289274, 403892, 578548, 5351569, 10703138, 21406276]

約数ペア:

[(1, 21406276), (2, 10703138), (4, 5351569), (37, 578548), (53, 403892), (74, 289274), (106, 201946), (148, 144637), (212, 100973), (1961, 10916), (2729, 7844), (3922, 5458)]