21113008

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1439}}^1$

素因数の和:1585

約数の個数: 40

約数和(自身を含む): 47139840

約数和(自身を除く): 26026832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1439, 1834, 2096, 2878, 3668, 5756, 7336, 10073, 11512, 14672, 20146, 23024, 40292, 80584, 161168, 188509, 377018, 754036, 1319563, 1508072, 2639126, 3016144, 5278252, 10556504, 21113008]

約数ペア:

[(1, 21113008), (2, 10556504), (4, 5278252), (7, 3016144), (8, 2639126), (14, 1508072), (16, 1319563), (28, 754036), (56, 377018), (112, 188509), (131, 161168), (262, 80584), (524, 40292), (917, 23024), (1048, 20146), (1439, 14672), (1834, 11512), (2096, 10073), (2878, 7336), (3668, 5756)]