20863808

素因数分解:

$2^6\times 7^2\times {\mathrm{6653}}^1$

素因数の和:6679

約数の個数: 42

約数和(自身を含む): 48168306

約数和(自身を除く): 27304498

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6653, 13306, 26612, 46571, 53224, 93142, 106448, 186284, 212896, 325997, 372568, 425792, 651994, 745136, 1303988, 1490272, 2607976, 2980544, 5215952, 10431904, 20863808]

約数ペア:

[(1, 20863808), (2, 10431904), (4, 5215952), (7, 2980544), (8, 2607976), (14, 1490272), (16, 1303988), (28, 745136), (32, 651994), (49, 425792), (56, 372568), (64, 325997), (98, 212896), (112, 186284), (196, 106448), (224, 93142), (392, 53224), (448, 46571), (784, 26612), (1568, 13306), (3136, 6653)]