20648922

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1913}}^1$

素因数の和:2182

約数の個数: 32

約数和(自身を含む): 47405952

約数和(自身を除く): 26757030

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 257, 514, 771, 1542, 1799, 1913, 3598, 3826, 5397, 5739, 10794, 11478, 13391, 26782, 40173, 80346, 491641, 983282, 1474923, 2949846, 3441487, 6882974, 10324461, 20648922]

約数ペア:

[(1, 20648922), (2, 10324461), (3, 6882974), (6, 3441487), (7, 2949846), (14, 1474923), (21, 983282), (42, 491641), (257, 80346), (514, 40173), (771, 26782), (1542, 13391), (1799, 11478), (1913, 10794), (3598, 5739), (3826, 5397)]