19138784

素因数分解:

$2^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2047

約数の個数: 48

約数和(自身を含む): 44085888

約数和(自身を除く): 24947104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 86, 112, 172, 224, 301, 344, 602, 688, 1204, 1376, 1987, 2408, 3974, 4816, 7948, 9632, 13909, 15896, 27818, 31792, 55636, 63584, 85441, 111272, 170882, 222544, 341764, 445088, 598087, 683528, 1196174, 1367056, 2392348, 2734112, 4784696, 9569392, 19138784]

約数ペア:

[(1, 19138784), (2, 9569392), (4, 4784696), (7, 2734112), (8, 2392348), (14, 1367056), (16, 1196174), (28, 683528), (32, 598087), (43, 445088), (56, 341764), (86, 222544), (112, 170882), (172, 111272), (224, 85441), (301, 63584), (344, 55636), (602, 31792), (688, 27818), (1204, 15896), (1376, 13909), (1987, 9632), (2408, 7948), (3974, 4816)]