21456897

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3203}}^1$

素因数の和:3253

約数の個数: 32

約数和(自身を含む): 36910080

約数和(自身を除く): 15453183

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 3203, 6699, 9609, 22421, 35233, 67263, 92887, 105699, 246631, 278661, 650209, 739893, 1021757, 1950627, 3065271, 7152299, 21456897]

約数ペア:

[(1, 21456897), (3, 7152299), (7, 3065271), (11, 1950627), (21, 1021757), (29, 739893), (33, 650209), (77, 278661), (87, 246631), (203, 105699), (231, 92887), (319, 67263), (609, 35233), (957, 22421), (2233, 9609), (3203, 6699)]