21387584

素因数分解:

$2^6\times {\mathrm{131}}^1\times {\mathrm{2551}}^1$

素因数の和:2694

約数の個数: 28

約数和(自身を含む): 42781728

約数和(自身を除く): 21394144

約数列:

[1, 2, 4, 8, 16, 32, 64, 131, 262, 524, 1048, 2096, 2551, 4192, 5102, 8384, 10204, 20408, 40816, 81632, 163264, 334181, 668362, 1336724, 2673448, 5346896, 10693792, 21387584]

約数ペア:

[(1, 21387584), (2, 10693792), (4, 5346896), (8, 2673448), (16, 1336724), (32, 668362), (64, 334181), (131, 163264), (262, 81632), (524, 40816), (1048, 20408), (2096, 10204), (2551, 8384), (4192, 5102)]