21165544

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8191}}^1$

素因数の和:8233

約数の個数: 32

約数和(自身を含む): 44236800

約数和(自身を除く): 23071256

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8191, 16382, 32764, 65528, 139247, 155629, 278494, 311258, 556988, 622516, 1113976, 1245032, 2645693, 5291386, 10582772, 21165544]

約数ペア:

[(1, 21165544), (2, 10582772), (4, 5291386), (8, 2645693), (17, 1245032), (19, 1113976), (34, 622516), (38, 556988), (68, 311258), (76, 278494), (136, 155629), (152, 139247), (323, 65528), (646, 32764), (1292, 16382), (2584, 8191)]