19873664

素因数分解:

$2^7\times {\mathrm{139}}^1\times {\mathrm{1117}}^1$

素因数の和:1270

約数の個数: 32

約数和(自身を含む): 39912600

約数和(自身を除く): 20038936

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 278, 556, 1112, 1117, 2224, 2234, 4448, 4468, 8896, 8936, 17792, 17872, 35744, 71488, 142976, 155263, 310526, 621052, 1242104, 2484208, 4968416, 9936832, 19873664]

約数ペア:

[(1, 19873664), (2, 9936832), (4, 4968416), (8, 2484208), (16, 1242104), (32, 621052), (64, 310526), (128, 155263), (139, 142976), (278, 71488), (556, 35744), (1112, 17872), (1117, 17792), (2224, 8936), (2234, 8896), (4448, 4468)]