21308168

素因数分解:

$2^3\times 7^1\times {\mathrm{380503}}^1$

素因数の和:380516

約数の個数: 16

約数和(自身を含む): 45660480

約数和(自身を除く): 24352312

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 380503, 761006, 1522012, 2663521, 3044024, 5327042, 10654084, 21308168]

約数ペア:

[(1, 21308168), (2, 10654084), (4, 5327042), (7, 3044024), (8, 2663521), (14, 1522012), (28, 761006), (56, 380503)]