20868518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{827}}^1$

素因数の和:908

約数の個数: 32

約数和(自身を含む): 36246528

約数和(自身を除く): 15378010

約数列:

[1, 2, 11, 22, 31, 37, 62, 74, 341, 407, 682, 814, 827, 1147, 1654, 2294, 9097, 12617, 18194, 25234, 25637, 30599, 51274, 61198, 282007, 336589, 564014, 673178, 948569, 1897138, 10434259, 20868518]

約数ペア:

[(1, 20868518), (2, 10434259), (11, 1897138), (22, 948569), (31, 673178), (37, 564014), (62, 336589), (74, 282007), (341, 61198), (407, 51274), (682, 30599), (814, 25637), (827, 25234), (1147, 18194), (1654, 12617), (2294, 9097)]