21234520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23081}}^1$

素因数の和:23115

約数の個数: 32

約数和(自身を含む): 49857120

約数和(自身を除く): 28622600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23081, 46162, 92324, 115405, 184648, 230810, 461620, 530863, 923240, 1061726, 2123452, 2654315, 4246904, 5308630, 10617260, 21234520]

約数ペア:

[(1, 21234520), (2, 10617260), (4, 5308630), (5, 4246904), (8, 2654315), (10, 2123452), (20, 1061726), (23, 923240), (40, 530863), (46, 461620), (92, 230810), (115, 184648), (184, 115405), (230, 92324), (460, 46162), (920, 23081)]