21919768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11093}}^1$

素因数の和:11131

約数の個数: 32

約数和(自身を含む): 46594800

約数和(自身を除く): 24675032

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 11093, 22186, 44372, 88744, 144209, 210767, 288418, 421534, 576836, 843068, 1153672, 1686136, 2739971, 5479942, 10959884, 21919768]

約数ペア:

[(1, 21919768), (2, 10959884), (4, 5479942), (8, 2739971), (13, 1686136), (19, 1153672), (26, 843068), (38, 576836), (52, 421534), (76, 288418), (104, 210767), (152, 144209), (247, 88744), (494, 44372), (988, 22186), (1976, 11093)]