21560770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28001}}^1$

素因数の和:28026

約数の個数: 32

約数和(自身を含む): 48387456

約数和(自身を除く): 26826686

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28001, 56002, 140005, 196007, 280010, 308011, 392014, 616022, 980035, 1540055, 1960070, 2156077, 3080110, 4312154, 10780385, 21560770]

約数ペア:

[(1, 21560770), (2, 10780385), (5, 4312154), (7, 3080110), (10, 2156077), (11, 1960070), (14, 1540055), (22, 980035), (35, 616022), (55, 392014), (70, 308011), (77, 280010), (110, 196007), (154, 140005), (385, 56002), (770, 28001)]