21745192

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4363}}^1$

素因数の和:4465

約数の個数: 32

約数和(自身を含む): 47131200

約数和(自身を除く): 25386008

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4363, 4984, 8726, 17452, 30541, 34904, 61082, 122164, 244328, 388307, 776614, 1553228, 2718149, 3106456, 5436298, 10872596, 21745192]

約数ペア:

[(1, 21745192), (2, 10872596), (4, 5436298), (7, 3106456), (8, 2718149), (14, 1553228), (28, 776614), (56, 388307), (89, 244328), (178, 122164), (356, 61082), (623, 34904), (712, 30541), (1246, 17452), (2492, 8726), (4363, 4984)]