21450128

素因数分解:

$2^4\times 7^1\times {\mathrm{191519}}^1$

素因数の和:191534

約数の個数: 20

約数和(自身を含む): 47496960

約数和(自身を除く): 26046832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191519, 383038, 766076, 1340633, 1532152, 2681266, 3064304, 5362532, 10725064, 21450128]

約数ペア:

[(1, 21450128), (2, 10725064), (4, 5362532), (7, 3064304), (8, 2681266), (14, 1532152), (16, 1340633), (28, 766076), (56, 383038), (112, 191519)]