21101773

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1531}}^1$

素因数の和:1728

約数の個数: 16

約数和(自身を含む): 26472960

約数和(自身を除く): 5371187

約数列:

[1, 7, 11, 77, 179, 1253, 1531, 1969, 10717, 13783, 16841, 117887, 274049, 1918343, 3014539, 21101773]

約数ペア:

[(1, 21101773), (7, 3014539), (11, 1918343), (77, 274049), (179, 117887), (1253, 16841), (1531, 13783), (1969, 10717)]