20945408

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{3719}}^1$

素因数の和:3748

約数の個数: 40

約数和(自身を含む): 45666720

約数和(自身を除く): 24721312

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1408, 2816, 3719, 5632, 7438, 14876, 29752, 40909, 59504, 81818, 119008, 163636, 238016, 327272, 476032, 654544, 952064, 1309088, 1904128, 2618176, 5236352, 10472704, 20945408]

約数ペア:

[(1, 20945408), (2, 10472704), (4, 5236352), (8, 2618176), (11, 1904128), (16, 1309088), (22, 952064), (32, 654544), (44, 476032), (64, 327272), (88, 238016), (128, 163636), (176, 119008), (256, 81818), (352, 59504), (512, 40909), (704, 29752), (1408, 14876), (2816, 7438), (3719, 5632)]