21240256

素因数分解:

$2^6\times {\mathrm{79}}^1\times {\mathrm{4201}}^1$

素因数の和:4292

約数の個数: 28

約数和(自身を含む): 42692320

約数和(自身を除く): 21452064

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 158, 316, 632, 1264, 2528, 4201, 5056, 8402, 16804, 33608, 67216, 134432, 268864, 331879, 663758, 1327516, 2655032, 5310064, 10620128, 21240256]

約数ペア:

[(1, 21240256), (2, 10620128), (4, 5310064), (8, 2655032), (16, 1327516), (32, 663758), (64, 331879), (79, 268864), (158, 134432), (316, 67216), (632, 33608), (1264, 16804), (2528, 8402), (4201, 5056)]