20257545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17539}}^1$

素因数の和:17565

約数の個数: 32

約数和(自身を含む): 40412160

約数和(自身を除く): 20154615

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17539, 52617, 87695, 122773, 192929, 263085, 368319, 578787, 613865, 964645, 1350503, 1841595, 2893935, 4051509, 6752515, 20257545]

約数ペア:

[(1, 20257545), (3, 6752515), (5, 4051509), (7, 2893935), (11, 1841595), (15, 1350503), (21, 964645), (33, 613865), (35, 578787), (55, 368319), (77, 263085), (105, 192929), (165, 122773), (231, 87695), (385, 52617), (1155, 17539)]