21399274

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 36242640

約数和(自身を除く): 14843366

約数列:

[1, 2, 13, 26, 29, 58, 101, 202, 281, 377, 562, 754, 1313, 2626, 2929, 3653, 5858, 7306, 8149, 16298, 28381, 38077, 56762, 76154, 105937, 211874, 368953, 737906, 823049, 1646098, 10699637, 21399274]

約数ペア:

[(1, 21399274), (2, 10699637), (13, 1646098), (26, 823049), (29, 737906), (58, 368953), (101, 211874), (202, 105937), (281, 76154), (377, 56762), (562, 38077), (754, 28381), (1313, 16298), (2626, 8149), (2929, 7306), (3653, 5858)]