18837784

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7823}}^1$

素因数の和:7879

約数の個数: 32

約数和(自身を含む): 41310720

約数和(自身を除く): 22472936

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 7823, 15646, 31292, 54761, 62584, 109522, 219044, 336389, 438088, 672778, 1345556, 2354723, 2691112, 4709446, 9418892, 18837784]

約数ペア:

[(1, 18837784), (2, 9418892), (4, 4709446), (7, 2691112), (8, 2354723), (14, 1345556), (28, 672778), (43, 438088), (56, 336389), (86, 219044), (172, 109522), (301, 62584), (344, 54761), (602, 31292), (1204, 15646), (2408, 7823)]