21240776

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{479}}^1$

素因数の和:749

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 20576824

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 241, 479, 482, 958, 964, 1916, 1928, 3832, 5543, 11017, 11086, 22034, 22172, 44068, 44344, 88136, 115439, 230878, 461756, 923512, 2655097, 5310194, 10620388, 21240776]

約数ペア:

[(1, 21240776), (2, 10620388), (4, 5310194), (8, 2655097), (23, 923512), (46, 461756), (92, 230878), (184, 115439), (241, 88136), (479, 44344), (482, 44068), (958, 22172), (964, 22034), (1916, 11086), (1928, 11017), (3832, 5543)]