18884224

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 39853440

約数和(自身を除く): 20969216

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 64, 73, 86, 94, 128, 146, 172, 188, 292, 344, 376, 584, 688, 752, 1168, 1376, 1504, 2021, 2336, 2752, 3008, 3139, 3431, 4042, 4672, 5504, 6016, 6278, 6862, 8084, 9344, 12556, 13724, 16168, 25112, 27448, 32336, 50224, 54896, 64672, 100448, 109792, 129344, 147533, 200896, 219584, 258688, 295066, 401792, 439168, 590132, 1180264, 2360528, 4721056, 9442112, 18884224]

約数ペア:

[(1, 18884224), (2, 9442112), (4, 4721056), (8, 2360528), (16, 1180264), (32, 590132), (43, 439168), (47, 401792), (64, 295066), (73, 258688), (86, 219584), (94, 200896), (128, 147533), (146, 129344), (172, 109792), (188, 100448), (292, 64672), (344, 54896), (376, 50224), (584, 32336), (688, 27448), (752, 25112), (1168, 16168), (1376, 13724), (1504, 12556), (2021, 9344), (2336, 8084), (2752, 6862), (3008, 6278), (3139, 6016), (3431, 5504), (4042, 4672)]