21080712

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8209}}^1$

素因数の和:8325

約数の個数: 32

約数和(自身を含む): 53200800

約数和(自身を除く): 32120088

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8209, 16418, 24627, 32836, 49254, 65672, 98508, 197016, 878363, 1756726, 2635089, 3513452, 5270178, 7026904, 10540356, 21080712]

約数ペア:

[(1, 21080712), (2, 10540356), (3, 7026904), (4, 5270178), (6, 3513452), (8, 2635089), (12, 1756726), (24, 878363), (107, 197016), (214, 98508), (321, 65672), (428, 49254), (642, 32836), (856, 24627), (1284, 16418), (2568, 8209)]