21989014768

素因数分解:

$2^4\times 7^1\times {\mathrm{196330489}}^1$

素因数の和:196330504

約数の個数: 20

約数和(自身を含む): 48689961520

約数和(自身を除く): 26700946752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 196330489, 392660978, 785321956, 1374313423, 1570643912, 2748626846, 3141287824, 5497253692, 10994507384, 21989014768]

約数ペア:

[(1, 21989014768), (2, 10994507384), (4, 5497253692), (7, 3141287824), (8, 2748626846), (14, 1570643912), (16, 1374313423), (28, 785321956), (56, 392660978), (112, 196330489)]