21780968

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{22501}}^1$

素因数の和:22529

約数の個数: 24

約数和(自身を含む): 44891490

約数和(自身を除く): 23110522

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 22501, 45002, 90004, 180008, 247511, 495022, 990044, 1980088, 2722621, 5445242, 10890484, 21780968]

約数ペア:

[(1, 21780968), (2, 10890484), (4, 5445242), (8, 2722621), (11, 1980088), (22, 990044), (44, 495022), (88, 247511), (121, 180008), (242, 90004), (484, 45002), (968, 22501)]