21685328

素因数分解:

$2^4\times 7^1\times {\mathrm{193619}}^1$

素因数の和:193634

約数の個数: 20

約数和(自身を含む): 48017760

約数和(自身を除く): 26332432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193619, 387238, 774476, 1355333, 1548952, 2710666, 3097904, 5421332, 10842664, 21685328]

約数ペア:

[(1, 21685328), (2, 10842664), (4, 5421332), (7, 3097904), (8, 2710666), (14, 1548952), (16, 1355333), (28, 774476), (56, 387238), (112, 193619)]