21974456

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4409}}^1$

素因数の和:4511

約数の個数: 32

約数和(自身を含む): 47628000

約数和(自身を除く): 25653544

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4409, 4984, 8818, 17636, 30863, 35272, 61726, 123452, 246904, 392401, 784802, 1569604, 2746807, 3139208, 5493614, 10987228, 21974456]

約数ペア:

[(1, 21974456), (2, 10987228), (4, 5493614), (7, 3139208), (8, 2746807), (14, 1569604), (28, 784802), (56, 392401), (89, 246904), (178, 123452), (356, 61726), (623, 35272), (712, 30863), (1246, 17636), (2492, 8818), (4409, 4984)]