21318968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{242261}}^1$

素因数の和:242278

約数の個数: 16

約数和(自身を含む): 43607160

約数和(自身を除く): 22288192

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 242261, 484522, 969044, 1938088, 2664871, 5329742, 10659484, 21318968]

約数ペア:

[(1, 21318968), (2, 10659484), (4, 5329742), (8, 2664871), (11, 1938088), (22, 969044), (44, 484522), (88, 242261)]