19641328

素因数分解:

$2^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1117}}^1$

素因数の和:1289

約数の個数: 40

約数和(自身を含む): 43807712

約数和(自身を除く): 24166384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 157, 314, 628, 1099, 1117, 1256, 2198, 2234, 2512, 4396, 4468, 7819, 8792, 8936, 15638, 17584, 17872, 31276, 62552, 125104, 175369, 350738, 701476, 1227583, 1402952, 2455166, 2805904, 4910332, 9820664, 19641328]

約数ペア:

[(1, 19641328), (2, 9820664), (4, 4910332), (7, 2805904), (8, 2455166), (14, 1402952), (16, 1227583), (28, 701476), (56, 350738), (112, 175369), (157, 125104), (314, 62552), (628, 31276), (1099, 17872), (1117, 17584), (1256, 15638), (2198, 8936), (2234, 8792), (2512, 7819), (4396, 4468)]